diff --git a/README.md b/README.md
index b1d2004de..745746b5a 100644
--- a/README.md
+++ b/README.md
@@ -4,8 +4,8 @@ Créez un site web performant en toute simplicité et sans base de données.
 
 [**Télécharger PluXml 5.8**](https://www.pluxml.org/download/pluxml-latest.zip) (zip)
 
-* Version stable (5.8) : [master](https://github.com/pluxml/PluXml/tree/master)
-* Version en développement (5.8.1) : [develop](https://github.com/pluxml/PluXml/tree/develop)
+* Version stable (5.8.1) : [master](https://github.com/pluxml/PluXml/tree/master)
+* Version en développement (6.0) : [develop](https://github.com/pluxml/PluXml/tree/develop)
 
 Principales caractéristiques
 ----------------------------
diff --git a/core/admin/auth.php b/core/admin/auth.php
index 32a3edc2f..97dbaf204 100644
--- a/core/admin/auth.php
+++ b/core/admin/auth.php
@@ -130,11 +130,11 @@
 
 	$plxAdmin->editPassword($_POST);
 
-	if (!empty($msg = $_SESSION['error'])) {
+	if (!empty($msg = isset($_SESSION['error']) ? $_SESSION['error'] : '')) {
 		$css = 'alert red';
 	}
 	else {
-		if (!empty($msg = $_SESSION['info'])) {
+		if (!empty($msg = isset($_SESSION['info']) ? $_SESSION['info'] : '')) {
 			$css = 'alert green';
 		}
 	}
@@ -173,7 +173,7 @@
 <?php
 				# Hook plugins
 				eval($plxAdmin->plxPlugins->callHook('AdminAuthBegin'));
-				switch ($_GET['action']){
+				switch (isset($_GET['action']) ? $_GET['action'] : false){
 					case 'lostpassword': # Affichage du formulaire d'envoi du mail de changement de mot de passe
 						# Hook plugins
 						eval($plxAdmin->plxPlugins->callHook('AdminAuthTopLostPassword'));
diff --git a/core/admin/prepend.php b/core/admin/prepend.php
index fd811d190..78697e910 100644
--- a/core/admin/prepend.php
+++ b/core/admin/prepend.php
@@ -1,8 +1,6 @@
 <?php
 const PLX_ROOT = '../../';
 const PLX_CORE = PLX_ROOT .'core/';
-const PLX_TEMPLATES = PLX_CORE.'templates/';
-const PLX_TEMPLATES_DATA = PLX_ROOT.'data/templates/';
 const SESSION_LIFETIME = 7200;
 
 include PLX_ROOT.'config.php';
@@ -40,7 +38,6 @@
 include_once PLX_CORE.'lib/class.plx.medias.php';
 include_once PLX_CORE.'lib/class.plx.plugins.php';
 include_once PLX_CORE.'lib/class.plx.token.php';
-include_once PLX_CORE.'lib/class.plx.template.php';
 
 # Echappement des caractères
 if($_SERVER['REQUEST_METHOD'] == 'POST') $_POST = plxUtils::unSlash($_POST);
diff --git a/core/admin/theme/plucss.min.css b/core/admin/theme/plucss.min.css
new file mode 100644
index 000000000..b9da7452c
--- /dev/null
+++ b/core/admin/theme/plucss.min.css
@@ -0,0 +1 @@
+.sup,progress,sub,sup{vertical-align:baseline}details,label,main,summary{display:block}body,figure{margin:0}.menu li,ul.inline-list li,ul.unstyled-list li{list-style-type:none}*,:after,:before{box-sizing:border-box}html{font-size:62.5%}body{font-family:sans-serif;font-size:1.5rem;line-height:1.5;color:#444}a{background:0 0;color:#258fd6;text-decoration:none}a:active,a:hover{outline:0;color:#444;text-decoration:underline}abbr{border-bottom:none;cursor:help;text-decoration:underline dotted}.button:hover,.menu.expanded li a:hover,.modal-btn-close,.pagination li.disabled a:hover{text-decoration:none}b,strong{font-weight:700}blockquote,dfn{font-style:italic}code,kbd,pre,samp{font-family:monospace;font-size:1.5rem}.sup,small,sub,sup{font-size:1.17rem}h1,h2,h3,h4,h5,h6{line-height:1;margin:3rem 0 1.5rem;font-weight:500}hr{height:0}img{border:0;height:auto;max-width:100%}pre{overflow:auto}.sup,sub,sup{line-height:0;position:relative}.sup,sup{top:-.75rem}sub{bottom:-.75rem}svg:not(:root){overflow:hidden}fieldset{border:none;padding:0}legend{margin-bottom:1.5rem;padding:0}label{padding-bottom:.3rem}button,input,select,textarea{font:inherit;height:3rem;margin:0;outline:0;padding-left:.4rem;padding-right:.4rem;width:100%}button,input{overflow:visible}.scrollable-table,textarea{overflow:auto}button::-moz-focus-inner,input::-moz-focus-inner{border:0;padding:0}[type=button],[type=reset],[type=submit],button{border-color:transparent;cursor:pointer;padding-left:.7rem;padding-right:.7rem;width:auto}textarea{height:auto}select{padding-left:.2rem;padding-right:0}optgroup{font-weight:700;font-style:normal}[type=checkbox],[type=radio]{height:auto;padding:0;width:auto}[type=file]{height:auto;padding:0}[disabled]:hover{cursor:not-allowed}table{border-collapse:collapse;border-spacing:0}caption,th{text-align:left}tr{border-bottom:1px solid;border-color:#bbb;transition-duration:.2s}td,th{height:3.5rem;padding-left:.7rem;padding-right:.7rem}.menu,ul.inline-list,ul.unstyled-list{padding-left:0}cite:before{content:"— "}.h1,.h2,.h3,.h4,.h5,.h6,.s1,.s2,.s3,.s4,.s5,.s6{height:auto}.h1,.s1,h1{font-size:2.5rem}.h2,.s2,h2{font-size:2rem}.h3,.s3,h3{font-size:1.67rem}.h4,.s4,h4{font-size:1.5rem}.h5,.s5,h5{font-size:1.33rem}.h6,.s6,h6{font-size:1.17rem}.heading-large{font-size:8rem}.heading-medium{font-size:6.5rem}.heading-small{font-size:4rem}.text-blue{color:#258fd6}.text-green{color:#239c56}.text-orange{color:#da7418}.text-red{color:#e43d29}ul.inline-list{font-size:0;margin:1.5rem 0}ul.inline-list li{display:inline-block;margin-left:.5rem;font-size:1.5rem}ul.inline-list li:first-child{margin-left:0}::-webkit-input-placeholder{font-style:italic;color:#999}::-moz-placeholder{font-style:italic;color:#999}:-ms-input-placeholder{font-style:italic;color:#999}:-moz-placeholder{font-style:italic;color:#999}tr:hover{background-color:#dbedf9;transition-duration:.2s}.gallery,.grid,.progress span{overflow:hidden}form .col{margin-bottom:1.5rem}form.inline-form button,form.inline-form input,form.inline-form label,form.inline-form select,form.inline-form textarea{display:inline-block;width:auto}form .col.label-centered{margin-bottom:0}form .label-centered label{padding-top:.3rem}button,input,select,textarea{border:1px solid #bbb;border-radius:.3rem;transition-duration:.2s}input:focus,select:focus,textarea:focus{border:1px solid #258fd6;transition-duration:.2s}[type=file]{border:none}button,input[type=button],input[type=reset],input[type=submit]{background-color:#777;color:#fff;transition-duration:.2s}button:hover,input[type=button]:hover,input[type=reset]:hover,input[type=submit]:hover{background-color:#555;transition-duration:.2s}button[disabled],button[disabled]:hover,input[disabled],input[disabled]:hover,select[disabled],select[disabled]:hover,textarea[disabled],textarea[disabled]:hover{background-color:#ddd;color:#aaa}button.blue,input[type=button].blue,input[type=reset].blue,input[type=submit].blue{background-color:#258fd6;color:#eee}button.blue:hover,input[type=button].blue:hover,input[type=reset].blue:hover,input[type=submit].blue:hover{background-color:#1f77b1}button.green,input[type=button].green,input[type=reset].green,input[type=submit].green{background-color:#239c56;color:#eee}button.green:hover,input[type=button].green:hover,input[type=reset].green:hover,input[type=submit].green:hover{background-color:#1c7943}button.orange,input[type=button].orange,input[type=reset].orange,input[type=submit].orange{background-color:#da7418;color:#eee}button.orange:hover,input[type=button].orange:hover,input[type=reset].orange:hover,input[type=submit].orange:hover{background-color:#b46014}button.red,input[type=button].red,input[type=reset].red,input[type=submit].red{background-color:#e43d29;color:#eee}button.red:hover,input[type=button].red:hover,input[type=reset].red:hover,input[type=submit].red:hover{background-color:#bc2818}button.yellow,input[type=button].yellow,input[type=reset].yellow,input[type=submit].yellow{background-color:#e0a800;color:#eee}button.yellow:hover,input[type=button].yellow:hover,input[type=reset].yellow:hover,input[type=submit].yellow:hover{background-color:#d39e00}.menu{font-size:0;margin:0}.menu.expanded li a,.responsive-menu label{height:3.5rem;line-height:3.5rem;padding-left:.7rem;padding-right:.7rem}.menu li{display:inline-block;font-size:1.5rem;margin-left:1.5rem}.menu li:first-child{margin-left:0}.menu li.active a{color:#444}.menu.vertical li{display:block;margin-left:0}.menu.expanded li{margin-left:0;transition-duration:.2s}.menu.expanded li:hover{border-radius:.3rem;background-color:#ddd;transition-duration:.2s}.menu.expanded li a{border-radius:.3rem;display:block}.menu.breadcrumb li+li:before,.menu.expanded.breadcrumb>li+li a:before{content:"/"}.menu.breadcrumb li+li:before,.menu.expanded.breadcrumb>li+li a:before,.menu.expanded.breadcrumb>li+li:before{margin-right:.7rem}.menu.expanded.breadcrumb>li+li:before{content:none}.menu.expanded li.active a,.menu.expanded li.active:hover{background-color:#258fd6;color:#fff}.responsive-menu label{background-color:#444;color:#fff;cursor:pointer;text-align:center}.responsive-menu input[type=checkbox],.responsive-menu label{display:none}.responsive-menu input[type=checkbox]:checked+ul{display:block}@media (max-width:47.938rem){.responsive-menu ul{display:none}.responsive-menu label,.responsive-menu ul li{display:block;margin-left:0}.responsive-menu ul li:hover{background-color:#ddd}.responsive-menu ul li a{display:block;height:3.5rem;line-height:3.5rem;padding-left:.7rem;padding-right:.7rem}.responsive-menu ul li a:hover{text-decoration:none}.responsive-menu .menu.breadcrumb li+li:before,.responsive-menu .menu.expanded.breadcrumb>li+li a:before{content:none}.responsive-menu ul li.active a,.responsive-menu ul li.active:hover{background-color:#258fd6;color:#fff}}.pagination{margin:0;padding:0;width:100%}.pagination ul,.pagination ul ul{display:inline-block;margin:0;padding:0}.pagination li,.pagination li li{display:inline-block;font-size:1.5rem;list-style-type:none;margin:10px;cursor:pointer}.pagination li.active a{color:red}.pagination li.disabled a{color:#999}.modal-mask{position:fixed;z-index:9998;top:0;left:0;width:100%;height:100%;background-color:rgba(0,0,0,.5);transition:opacity .3s ease}.frame,.progress,.progress span{position:relative}.modal-container{width:450px;margin:40px auto 0;padding:20px 30px;background-color:#fff;border-radius:2px;box-shadow:0 2px 8px rgba(0,0,0,.33);transition:all .3s ease;font-family:Helvetica,Arial,sans-serif}.button,.button:hover{transition-duration:.2s}.modal-header{margin-top:0}.modal-body,.modal-footer{margin:20px 0}.modal-footer{text-align:right}.modal-container button:hover{color:#333;background-color:transparent}.modal-btn-close{background:0 0;border:0;height:1rem;line-height:1rem;margin-left:.2rem;margin-right:-2px;padding:0 2px;width:1rem;color:#999}.alert,.button,.progress{border-radius:.3rem}.modal-btn-close:after{display:inline-block;content:"\00d7"}.gallery{list-style:none;margin-left:-1.5rem;margin-right:-1.5rem;padding-left:0}.gallery li{float:left;padding:0 1.5rem 1.5rem}.alert{margin-bottom:1.5rem;padding:1.5rem}.alert a,.alert a:hover{color:inherit}.alert.blue{background-color:#dbedf9;color:#258fd6}.alert.green{background-color:#d3f5e2;color:#239c56}.alert.orange{background-color:#fbe8d9;color:#da7418}.alert.red{background-color:#fce4e2;color:#e43d29}.button{background-color:#777;color:#fff;padding:.9rem .7rem}.button:hover{background-color:#555}.button.blue{background-color:#258fd6;color:#eee}.button.blue:hover{background-color:#1f77b1}.button.green{background-color:#239c56;color:#eee}.button.green:hover{background-color:#1c7943}.button.orange{background-color:#da7418;color:#eee}.button.orange:hover{background-color:#b46014}.button.red{background-color:#e43d29;color:#eee}.button.red:hover{background-color:#bc2818}.button.yellow{background-color:#e0a800;color:#eee}.button.yellow:hover{background-color:#d39e00}.progress{background-color:#fff;border:1px solid #bbb;width:100%}.progress span{background-color:#258fd6;border-radius:.3rem;color:#fff;display:block;height:3.5rem;line-height:3.5rem;min-width:2.2rem;text-align:center}.progress span[style="width: 0%;"]{background:0 0;color:#444}.badge,.label{background-color:#258fd6;border-radius:.3rem;color:#fff;display:inline-block;margin-left:.4rem}.badge{line-height:1;padding:.2rem}.menu.expanded .active a .badge{background-color:#fff;color:#258fd6}.menu.vertical .badge{float:right}.menu.vertical.expanded .badge{margin-top:.8rem}.label{padding:.25rem .4rem}.frame{height:0;padding-top:56.25%}.frame embed,.frame iframe,.frame object,.frame video{height:100%;left:0;position:absolute;top:0;width:100%}.img-circle{border-radius:50%}.img-rounded{border-radius:.3rem}a.tooltip{position:relative;display:inline}.float-center,.show{display:block}a.tooltip 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(min-width:48rem){.container{padding-left:2rem;padding-right:2rem}.col.med-1,.gallery.med-1 li{width:8.3333%}.col.med-2,.gallery.med-2 li{width:16.6666%}.col.med-3,.gallery.med-3 li{width:25%}.col.med-4,.gallery.med-4 li{width:33.3333%}.col.med-5,.gallery.med-5 li{width:41.6666%}.col.med-6,.gallery.med-6 li{width:50%}.col.med-7,.gallery.med-7 li{width:58.3333%}.col.med-8,.gallery.med-8 li{width:66.6666%}.col.med-9,.gallery.med-9 li{width:75%}.col.med-10,.gallery.med-10 li{width:83.3333%}.col.med-11,.gallery.med-11 li{width:91.6666%}.col.med-12,.gallery.med-12 li,.med-full-width{width:100%}.col.med-push-0{left:auto}.col.med-push-1{left:8.3333%}.col.med-push-2{left:16.6666%}.col.med-push-3{left:25%}.col.med-push-4{left:33.3333%}.col.med-push-5{left:41.6666%}.col.med-push-6{left:50%}.col.med-push-7{left:58.3333%}.col.med-push-8{left:66.6666%}.col.med-push-9{left:75%}.col.med-push-10{left:83.3333%}.col.med-push-11{left:91.6666%}.col.med-push-12{left:100%}.col.med-pull-0{right:auto}.col.med-pull-1{right:8.3333%}.col.med-pull-2{right:16.6666%}.col.med-pull-3{right:25%}.col.med-pull-4{right:33.3333%}.col.med-pull-5{right:41.6666%}.col.med-pull-6{right:50%}.col.med-pull-7{right:58.3333%}.col.med-pull-8{right:66.6666%}.col.med-pull-9{right:75%}.col.med-pull-10{right:83.3333%}.col.med-pull-11{right:91.6666%}.col.med-pull-12{right:100%}.col.med-offset-0{margin-left:0}.col.med-offset-1{margin-left:8.3333%}.col.med-offset-2{margin-left:16.6666%}.col.med-offset-3{margin-left:25%}.col.med-offset-4{margin-left:33.3333%}.col.med-offset-5{margin-left:41.6666%}.col.med-offset-6{margin-left:50%}.col.med-offset-7{margin-left:58.3333%}.col.med-offset-8{margin-left:66.6666%}.col.med-offset-9{margin-left:75%}.col.med-offset-10{margin-left:83.3333%}.col.med-offset-11{margin-left:91.6666%}.col.med-offset-12{margin-left:100%}.col.med-centered,.med-float-center{margin-left:auto;margin-right:auto}.col.med-centered{float:none}.col.med-uncentered,.med-float-left{float:left}.med-h1{font-size:2.5rem}.med-h2{font-size:2rem}.med-h3{font-size:1.67rem}.med-h4{font-size:1.5rem}.med-h5{font-size:1.33rem}.med-h6{font-size:1.17rem}.med-text-left{text-align:left}.med-text-center{text-align:center}.med-text-right{text-align:right}.med-text-justify{text-align:justify}.med-float-right{float:right}.med-float-none{float:none}.med-show{display:block}.med-hide{display:none}.med-width-auto{width:auto}.med-no-margin{margin:0}.med-no-padding{padding:0}}@media (min-width:64rem){.container{padding-left:3rem;padding-right:3rem}.col.lrg-1,.gallery.lrg-1 li{width:8.3333%}.col.lrg-2,.gallery.lrg-2 li{width:16.6666%}.col.lrg-3,.gallery.lrg-3 li{width:25%}.col.lrg-4,.gallery.lrg-4 li{width:33.3333%}.col.lrg-5,.gallery.lrg-5 li{width:41.6666%}.col.lrg-6,.gallery.lrg-6 li{width:50%}.col.lrg-7,.gallery.lrg-7 li{width:58.3333%}.col.lrg-8,.gallery.lrg-8 li{width:66.6666%}.col.lrg-9,.gallery.lrg-9 li{width:75%}.col.lrg-10,.gallery.lrg-10 li{width:83.3333%}.col.lrg-11,.gallery.lrg-11 li{width:91.6666%}.col.lrg-12,.gallery.lrg-12 li,.lrg-full-width{width:100%}.col.lrg-push-0{left:auto}.col.lrg-push-1{left:8.3333%}.col.lrg-push-2{left:16.6666%}.col.lrg-push-3{left:25%}.col.lrg-push-4{left:33.3333%}.col.lrg-push-5{left:41.6666%}.col.lrg-push-6{left:50%}.col.lrg-push-7{left:58.3333%}.col.lrg-push-8{left:66.6666%}.col.lrg-push-9{left:75%}.col.lrg-push-10{left:83.3333%}.col.lrg-push-11{left:91.6666%}.col.lrg-push-12{left:100%}.col.lrg-pull-0{right:auto}.col.lrg-pull-1{right:8.3333%}.col.lrg-pull-2{right:16.6666%}.col.lrg-pull-3{right:25%}.col.lrg-pull-4{right:33.3333%}.col.lrg-pull-5{right:41.6666%}.col.lrg-pull-6{right:50%}.col.lrg-pull-7{right:58.3333%}.col.lrg-pull-8{right:66.6666%}.col.lrg-pull-9{right:75%}.col.lrg-pull-10{right:83.3333%}.col.lrg-pull-11{right:91.6666%}.col.lrg-pull-12{right:100%}.col.lrg-offset-0{margin-left:0}.col.lrg-offset-1{margin-left:8.3333%}.col.lrg-offset-2{margin-left:16.6666%}.col.lrg-offset-3{margin-left:25%}.col.lrg-offset-4{margin-left:33.3333%}.col.lrg-offset-5{margin-left:41.6666%}.col.lrg-offset-6{margin-left:50%}.col.lrg-offset-7{margin-left:58.3333%}.col.lrg-offset-8{margin-left:66.6666%}.col.lrg-offset-9{margin-left:75%}.col.lrg-offset-10{margin-left:83.3333%}.col.lrg-offset-11{margin-left:91.6666%}.col.lrg-offset-12{margin-left:100%}.col.lrg-centered,.lrg-float-center{margin-left:auto;margin-right:auto}.col.lrg-centered{float:none}.col.lrg-uncentered,.lrg-float-left{float:left}.lrg-h1{font-size:2.5rem}.lrg-h2{font-size:2rem}.lrg-h3{font-size:1.67rem}.lrg-h4{font-size:1.5rem}.lrg-h5{font-size:1.33rem}.lrg-h6{font-size:1.17rem}.lrg-text-left{text-align:left}.lrg-text-center{text-align:center}.lrg-text-right{text-align:right}.lrg-text-justify{text-align:justify}.lrg-float-right{float:right}.lrg-float-none{float:none}.lrg-show{display:block}.lrg-hide{display:none}.lrg-width-auto{width:auto}.lrg-no-margin{margin:0}.lrg-no-padding{padding:0}}
\ No newline at end of file
diff --git a/core/admin/top.php b/core/admin/top.php
index fed4cc05d..cfaed96a4 100644
--- a/core/admin/top.php
+++ b/core/admin/top.php
@@ -68,7 +68,7 @@
 						else echo L_PROFIL_WRITER; ?>
 					</em>
 				</li>
-				<li><small><a class="version" title="PluXml" href="<?php echo PLX_REPO_URL ?>">PluXml <?php echo $plxAdmin->aConf['version'] ?></a></small></li>
+				<li><small><a class="version" title="PluXml" href="<?php echo PLX_URL_REPO ?>">PluXml <?php echo $plxAdmin->aConf['version'] ?></a></small></li>
 			</ul>
 		</header>
 		<nav class="responsive-menu">
@@ -150,4 +150,4 @@
 
 		# Hook Plugins
 		eval($plxAdmin->plxPlugins->callHook('AdminTopBottom'));
-?>
\ No newline at end of file
+?>
diff --git a/core/lang/en/core.php b/core/lang/en/core.php
index eb45dd09b..e10d3ac70 100644
--- a/core/lang/en/core.php
+++ b/core/lang/en/core.php
@@ -81,7 +81,7 @@
 
 # class.plx.utils.php
 'L_WRITE_ACCESS'				=> '%s has write access',
-'L_WRITE_NOT_ACCESS'			=> '%s does not have write access or does not exist',
+'L_WRITE_NOT_ACCESS'			=> '%s has no writing access or is missing',
 'L_MODREWRITE_AVAILABLE'		=> 'Apache URL Rewriting module mod_rewrite available',
 'L_MODREWRITE_NOT_AVAILABLE'	=> 'Apache URL Rewriting module mod_rewrite unavailable',
 'L_LIBGD_INSTALLED'				=> 'GD library installed',
diff --git a/core/lib/class.plx.admin.php b/core/lib/class.plx.admin.php
index b42791069..51747a416 100644
--- a/core/lib/class.plx.admin.php
+++ b/core/lib/class.plx.admin.php
@@ -370,7 +370,7 @@ public function verifyLostPasswordToken($token) {
 		$valid = false;
 
 		foreach($this->aUsers as $user_id => $user) {
-			if ($user['password_token'] == $token  AND $user['password_token_expiry'] >= date(YmdHi)) {
+			if ($user['password_token'] == $token  AND $user['password_token_expiry'] >= date('YmdHi')) {
 				$valid = true;
 			}
 		}
@@ -439,8 +439,8 @@ public function editUsers($content, $action=false) {
 					$this->aUsers[$user_id]['lang'] = (isset($this->aUsers[$user_id]['lang'])?$this->aUsers[$user_id]['lang']:$this->aConf['default_lang']);
 					$this->aUsers[$user_id]['infos'] = (isset($this->aUsers[$user_id]['infos'])?$this->aUsers[$user_id]['infos']:'');
 
-					$this->aUsers[$user_id]['password_token'] = trim($content[$user_id.'_password_token']);
-					$this->aUsers[$user_id]['password_token_expiry'] = trim($content[$user_id.'_password_token_expiry']);
+					$this->aUsers[$user_id]['password_token'] = (isset($this->aUsers[$user_id]['_password_token'])?$this->aUsers[$user_id]['_password_token']:'');
+					$this->aUsers[$user_id]['password_token_expiry'] = (isset($this->aUsers[$user_id]['_password_token_expiry'])?$this->aUsers[$user_id]['_password_token_expiry']:'');
 					# Hook plugins
 					eval($this->plxPlugins->callHook('plxAdminEditUsersUpdate'));
 					$action = true;
diff --git a/core/lib/class.plx.motor.php b/core/lib/class.plx.motor.php
index 1c5c5f106..0670cec09 100644
--- a/core/lib/class.plx.motor.php
+++ b/core/lib/class.plx.motor.php
@@ -7,7 +7,11 @@
  * @author	Anthony GUÉRIN, Florent MONTHEL, Stéphane F, Pedro "P3ter" CADETE
  **/
 
+include_once PLX_CORE.'lib/class.plx.template.php';
+
 class plxMotor {
+	const PLX_TEMPLATES = PLX_CORE . 'templates/';
+	const PLX_TEMPLATES_DATA = PLX_ROOT . 'data/templates/';
 
 	public $get = false; # Donnees variable GET
 	public $racine = false; # Url de PluXml
@@ -110,8 +114,8 @@ protected function __construct($filename) {
 		# Hook plugins
 		eval($this->plxPlugins->callHook('plxMotorConstruct'));
 		# Get templates from core/templates and data/templates
-		$this->getTemplates(PLX_TEMPLATES);
-		$this->getTemplates(PLX_TEMPLATES_DATA);
+		$this->getTemplates(self::PLX_TEMPLATES);
+		$this->getTemplates(self::PLX_TEMPLATES_DATA);
 	}
 
 	/**
@@ -443,9 +447,12 @@ public function getCategories($filename) {
 				# Recuperation du fichier template
 				$this->aCats[$number]['template']=isset($attributes['template'])?$attributes['template']:'categorie.php';
 				# Récupération des informations de l'image représentant la catégorie
-				$this->aCats[$number]['thumbnail']=plxUtils::getValue($values[$iTags['thumbnail'][$i]]['value']);
-				$this->aCats[$number]['thumbnail_title']=plxUtils::getValue($values[$iTags['thumbnail_title'][$i]]['value']);
-				$this->aCats[$number]['thumbnail_alt']=plxUtils::getValue($values[$iTags['thumbnail_alt'][$i]]['value']);
+				$thumbnail = plxUtils::getValue($iTags['thumbnail'][$i]);
+				$this->aCats[$number]['thumbnail']=plxUtils::getValue($values[$thumbnail]['value']);
+				$thumbnail_title = plxUtils::getValue($iTags['thumbnail_title'][$i]);
+				$this->aCats[$number]['thumbnail_title']=plxUtils::getValue($values[$thumbnail_title]['value']);
+				$thumbnail_alt = plxUtils::getValue($iTags['thumbnail_alt'][$i]);
+				$this->aCats[$number]['thumbnail_alt']=plxUtils::getValue($values[$thumbnail_alt]['value']);
 				# Récuperation état affichage de la catégorie dans le menu
 				$this->aCats[$number]['menu']=isset($attributes['menu'])?$attributes['menu']:'oui';
 				# Récuperation état activation de la catégorie dans le menu
@@ -569,8 +576,10 @@ public function getUsers($filename) {
 				$this->aUsers[$number]['email']=plxUtils::getValue($values[$email]['value']);
 				$lang = isset($iTags['lang'][$i]) ? $values[$iTags['lang'][$i]]['value']:'';
 				$this->aUsers[$number]['lang'] = $lang!='' ? $lang : $this->aConf['default_lang'];
-				$this->aUsers[$number]['password_token']=plxUtils::getValue($values[$iTags['password_token'][$i]]['value']);
-				$this->aUsers[$number]['password_token_expiry']=plxUtils::getValue($values[$iTags['password_token_expiry'][$i]]['value']);
+				$password_token = plxUtils::getValue($iTags['password_token'][$i]);
+				$this->aUsers[$number]['password_token']=plxUtils::getValue($values[$password_token]['value']);
+				$password_token_expiry = plxUtils::getValue($iTags['password_token_expiry'][$i]);
+				$this->aUsers[$number]['password_token_expiry']=plxUtils::getValue($values[$password_token_expiry]['value']);
 				# Hook plugins
 				eval($this->plxPlugins->callHook('plxMotorGetUsers'));
 			}
@@ -992,7 +1001,7 @@ public function getTags($filename) {
 		# Mémorisation de la liste des tags
 		$this->aTags = $array;
 	}
-	
+
 	/**
 	 * Méthode qui alimente le tableau aTemplate
 	 *
@@ -1001,9 +1010,13 @@ public function getTags($filename) {
 	 * @author	Pedro "P3ter" CADETE
 	 **/
 	public function getTemplates($templateFolder) {
-		$files = array_diff(scandir($templateFolder), array('..', '.'));
-		foreach ($files as $file) {
-			$this->aTemplates[$file] = new PlxTemplate($templateFolder, $file);
+		if(is_dir($templateFolder)) {
+			$files = array_diff(scandir($templateFolder), array('..', '.'));
+			if (!empty($files)) {
+				foreach ($files as $file) {
+					$this->aTemplates[$file] = new PlxTemplate($templateFolder, $file);
+				}
+			}
 		}
 	}
 
diff --git a/core/lib/class.plx.show.php b/core/lib/class.plx.show.php
index 287858120..507a67fac 100644
--- a/core/lib/class.plx.show.php
+++ b/core/lib/class.plx.show.php
@@ -487,8 +487,8 @@ public function catThumbnail($format='<a href="#img_url"><img class="cat_thumbna
 				array(
 					$img_url, # #img_url
 					(file_exists(PLX_ROOT.$img_thumb)) ? $this->plxMotor->urlRewrite($img_thumb) : $img_url, # #img_thumb_url
-					plxUtils::strCheck($this->plxMotor->aCats[$this->plxMotor->cible]['thumbnail_title']), # #img_title
-					plxUtils::strCheck($this->plxMotor->aCats[$this->plxMotor->cible]['thumbnail_alt']) # #img_alt
+					plxUtils::strCheck(plxUtils::getValue($this->plxMotor->aCats[$this->plxMotor->cible]['thumbnail_title'])), # #img_title
+					plxUtils::strCheck(plxUtils::getValue($this->plxMotor->aCats[$this->plxMotor->cible]['thumbnail_alt'])) # #img_alt
 				),
 				$format
 			);
diff --git a/core/lib/class.plx.template.php b/core/lib/class.plx.template.php
index 112555784..774639a38 100644
--- a/core/lib/class.plx.template.php
+++ b/core/lib/class.plx.template.php
@@ -237,14 +237,21 @@ private function parseTemplate($fileName) {
 		xml_parser_free($parser);
 
 		# getting datas from the parser
-		$template['name'] = plxUtils::getValue($values[$index['name'][0]]['value']);
-		$template['type'] = plxUtils::getValue($values[$index['type'][0]]['value']);
+		$name = plxUtils::getValue($index['name'][0]);
+		$template['name'] = plxUtils::getValue($values[$name]['value']);
+		$type = plxUtils::getValue($index['type'][0]);
+		$template['type'] = plxUtils::getValue($values[$type]['value']);
 		if ($template['type'] == 'email') {
-			$template['emailname'] = plxUtils::getValue($values[$index['emailname'][0]]['value']);
-			$template['emailfrom'] = plxUtils::getValue($values[$index['emailfrom'][0]]['value']);
-			$template['emailsubject'] = plxUtils::getValue($values[$index['emailsubject'][0]]['value']);
+			$emailname = plxUtils::getValue($index['emailname'][0]);
+			$template['emailname'] = plxUtils::getValue($values[$emailname]['value']);
+			$emailfrom = plxUtils::getValue($index['emailfrom'][0]);
+			$template['emailfrom'] = plxUtils::getValue($values[$emailfrom]['value']);
+			$emailsubject = plxUtils::getValue($index['emailsubject'][0]);
+			$template['emailsubject'] = plxUtils::getValue($values[$emailsubject]['value']);
+
 		}
-		$template['content'] = plxUtils::getValue($values[$index['content'][0]]['value']);
+		$content = plxUtils::getValue($index['content'][0]);
+		$template['content'] = plxUtils::getValue($values[$content]['value']);
 
 		return $template;
 	}
diff --git a/core/lib/class.plx.token.php b/core/lib/class.plx.token.php
index 028217974..1c84cf2f1 100644
--- a/core/lib/class.plx.token.php
+++ b/core/lib/class.plx.token.php
@@ -60,7 +60,7 @@ public static function generateToken() {
 	 */
 
 	public static function generateTokenExperyDate($hours = 24) {
-		return date(YmdHis, mktime(date(H)+$hours, date(i), date(s), date(m), date(d), date(Y)));
+		return date('YmdHis', mktime(date('H')+$hours, date('i'), date('s'), date('m'), date('d'), date('Y')));
 	}
 
 }
\ No newline at end of file
diff --git a/core/lib/config.php b/core/lib/config.php
index bc070f1c4..1467fe21e 100644
--- a/core/lib/config.php
+++ b/core/lib/config.php
@@ -1,10 +1,11 @@
 <?php
 const PLX_DEBUG = false;
-const PLX_VERSION = '5.8';
+const PLX_VERSION = '5.8.1';
 const PLX_URL_REPO = 'https://www.pluxml.org';
 const PLX_URL_VERSION = PLX_URL_REPO.'/download/latest-version.txt';
+
 # Gestion des erreurs PHP
-if(PLX_DEBUG) error_reporting(E_ALL ^ E_NOTICE ^ E_WARNING);
+if(PLX_DEBUG) error_reporting(E_ERROR | E_WARNING | E_PARSE | E_NOTICE);
 
 # Fonction qui retourne le timestamp UNIX actuel avec les microsecondes
 function getMicrotime() {
diff --git a/install.php b/install.php
index b01a42988..5ef42eec8 100644
--- a/install.php
+++ b/install.php
@@ -17,6 +17,7 @@
 include(PLX_CORE.'lib/class.plx.token.php');
 
 # Chargement des langues
+$lang = (!empty($_SERVER['HTTP_ACCEPT_LANGUAGE'])) ? substr($_SERVER['HTTP_ACCEPT_LANGUAGE'], 0, 2) : DEFAULT_LANG;
 if(!empty($_POST) AND $_POST['default_lang'] != DEFAULT_LANG ){
 	$lang = $_POST['default_lang'];
 }
@@ -53,6 +54,11 @@
 	@mkdir(PLX_ROOT.PLX_CONFIG_PATH.'plugins',0755,true);
 }
 
+# Vérification de l'existence du dossier data/templates
+if(!is_dir(PLX_ROOT.'data/templates')) {
+	@mkdir(PLX_ROOT.'data/templates',0755,true);
+}
+
 # Echappement des caractères
 if($_SERVER['REQUEST_METHOD'] == 'POST') {
 	$_POST = plxUtils::unSlash($_POST);
@@ -158,7 +164,7 @@ function install($content, $config) {
 	$xml = '<?xml version="1.0" encoding="'.PLX_CHARSET.'"?>'."\n";
 	$xml .= '<document>'."\n";
 	if($content['data']>0)
-		$xml .= "\t".'<categorie number="001" active="1" homepage="1" tri="'.$config['tri'].'" bypage="'.$config['bypage'].'" menu="oui" url="'.L_DEFAULT_CATEGORY_URL.'" template="categorie.php"><name><![CDATA['.plxUtils::strRevCheck(L_DEFAULT_CATEGORY_TITLE).']]></name><description><![CDATA[]]></description><meta_description><![CDATA[]]></meta_description><meta_keywords><![CDATA[]]></meta_keywords><title_htmltag><![CDATA[]]></title_htmltag></categorie>'."\n";
+		$xml .= "\t".'<categorie number="001" active="1" homepage="1" tri="'.$config['tri'].'" bypage="'.$config['bypage'].'" menu="oui" url="'.L_DEFAULT_CATEGORY_URL.'" template="categorie.php"><name><![CDATA['.plxUtils::strRevCheck(L_DEFAULT_CATEGORY_TITLE).']]></name><description><![CDATA[]]></description><meta_description><![CDATA[]]></meta_description><meta_keywords><![CDATA[]]></meta_keywords><title_htmltag><![CDATA[]]></title_htmltag><thumbnail><![CDATA[]]></thumbnail><thumbnail_title><![CDATA[]]></thumbnail_title><thumbnail_alt><![CDATA[]]></thumbnail_alt></categorie>'."\n";
 
 	$xml .= '</document>';
 	plxUtils::write($xml,path('XMLFILE_CATEGORIES'));
diff --git a/readme/CHANGELOG b/readme/CHANGELOG
index 11a7378d8..48823fbec 100644
--- a/readme/CHANGELOG
+++ b/readme/CHANGELOG
@@ -1,3 +1,10 @@
+## PLUXML 5.8.1 (sortie : 07/01/2020) ##
+FIX #360 Undefined index: password_token
+FIX #361 Use of undefined constant PLX_TEMPLATES
+FIX #362 Uncaught Error: Class 'PlxTemplate' not found
+FIX #363 Notice: Undefined index: name
+FIX #364 warning messages and use browser language
+
 ## PLUXML 5.8 (sortie : 05/01/2020) ##
 [+] PluCSS 1.3.1
 [+] Feature "Mot de passe oublié" : envoi d'un lien par mail permettant la création d'un nouveau mot de passe (P3ter)
diff --git a/update/index.php b/update/index.php
index 6959374d3..2c311930c 100644
--- a/update/index.php
+++ b/update/index.php
@@ -1,10 +1,10 @@
 <?php
-define('PLX_ROOT', '../');
-define('PLX_CORE', PLX_ROOT.'core/');
+const PLX_ROOT = '../';
+const PLX_CORE = PLX_ROOT . 'core/';
 include(PLX_ROOT.'config.php');
 include(PLX_CORE.'lib/config.php');
 
-define('PLX_UPDATER', true);
+const PLX_UPDATER = true;
 
 # On verifie que PluXml est installé
 if(!file_exists(path('XMLFILE_PARAMETERS'))) {
@@ -27,7 +27,7 @@
 include(PLX_ROOT.'update/class.plx.updater.php');
 
 # Chargement des langues
-$lang = DEFAULT_LANG;
+$lang = (!empty($_SERVER['HTTP_ACCEPT_LANGUAGE'])) ? substr($_SERVER['HTTP_ACCEPT_LANGUAGE'], 0, 2) : DEFAULT_LANG;
 if(isset($_POST['default_lang'])) $lang=$_POST['default_lang'];
 if(!array_key_exists($lang, plxUtils::getLangs())) {
 	$lang = DEFAULT_LANG;
@@ -95,15 +95,13 @@
 				<form action="index.php" method="post">
 					<fieldset>
 						<div class="grid">
-							<div class="col sml-12 med-5 label-centered">
+							<div class="col sml-9 med-7 label-centered">
 								<label for="id_default_lang"><?php echo L_SELECT_LANG ?></label>
 							</div>
-							<div class="col sml-12 med-7">
+							<div class="col sml-3 med-2">
 								<?php plxUtils::printSelect('default_lang', plxUtils::getLangs(), $lang) ?>&nbsp;
 							</div>
-						</div>
-						<div class="grid">
-							<div class="col sml-12">
+							<div class="col med-3">
 								<input type="submit" name="select_lang" value="<?php echo L_INPUT_CHANGE ?>" />
 								<?php echo plxToken::getTokenPostMethod() ?>
 							</div>
diff --git a/update/update_5.8.1.php b/update/update_5.8.1.php
new file mode 100755
index 000000000..46cd4934b
--- /dev/null
+++ b/update/update_5.8.1.php
@@ -0,0 +1,66 @@
+<?php
+/**
+ * Classe de mise a jour pour PluXml version 5.8
+ *
+ * @package PLX
+ * @author	Pedro "P3ter" CADETE
+ **/
+class update_5_8_1 extends plxUpdate{
+
+	/**
+	 * Update category file with new fields thumbnail, thumbnail_title, thumbnail_alt
+	 * @return boolean
+	 */
+	public function step1() {
+		echo L_UPDATE_FILE." (".path('XMLFILE_CATEGORIES').")<br />";
+		$data = file_get_contents(path('XMLFILE_CATEGORIES'));
+		$tag = 'categorie';
+		if(preg_match_all('{<'.$tag.'[^>]*>(.*?)</'.$tag.'>}', $data, $matches, PREG_PATTERN_ORDER)) {
+			foreach($matches[0] as $match) {
+				if(!preg_match('/<thumbnail>/', $match)) {
+					$str = str_replace('</'.$tag.'>', '<thumbnail><![CDATA[]]></thumbnail><thumbnail_title><![CDATA[]]></thumbnail_title><thumbnail_alt><![CDATA[]]></thumbnail_alt></'.$tag.'>', $match);
+					$data = str_replace($match, $str, $data);
+				}
+			}
+			if(!plxUtils::write($data, path('XMLFILE_CATEGORIES'))) {
+				echo '<p class="error">'.L_UPDATE_ERR_FILE.'</p>';
+				return false;
+			}
+		}
+		return true;
+	}
+	
+	/**
+	 * Update users file with new fields password_token, password_token_expiry
+	 * @return boolean
+	 */
+	public function step2() {
+		echo L_UPDATE_FILE." (".path('XMLFILE_USERS').")<br />";
+		$data = file_get_contents(path('XMLFILE_USERS'));
+		$tag = 'user';
+		if(preg_match_all('{<'.$tag.'[^>]*>(.*?)</'.$tag.'>}', $data, $matches, PREG_PATTERN_ORDER)) {
+			foreach($matches[0] as $match) {
+				if(!preg_match('/<password_token>/', $match)) {
+					$str = str_replace('</'.$tag.'>', '<password_token><![CDATA[]]></password_token><password_token_expiry><![CDATA[]]></password_token_expiry></'.$tag.'>', $match);
+					$data = str_replace($match, $str, $data);
+				}
+			}
+			if(!plxUtils::write($data, path('XMLFILE_CATEGORIES'))) {
+				echo '<p class="error">'.L_UPDATE_ERR_FILE.'</p>';
+				return false;
+			}
+		}
+		return true;
+	}
+	
+	/**
+	 * Create data/templates folder if is missing
+	 * @return boolean
+	 */
+	public function step3() {
+		if(!is_dir(PLX_ROOT.'data/templates')) {
+			@mkdir(PLX_ROOT.'data/templates',0755,true);
+		}
+		return true;
+	}
+}
diff --git a/update/versions.php b/update/versions.php
index 599a1ca3d..c0a19178f 100644
--- a/update/versions.php
+++ b/update/versions.php
@@ -6,29 +6,30 @@
  * @author	Stephane F
  **/
 
-$versions = array(
-	'4.2'	=>	'update_4.2.php',
-	'4.3'	=>	'',
-	'4.3.1'	=>	'',
-	'4.3.2'	=>	'',
-	'5.0'	=>	'update_5.0.php',
-	'5.0.1'	=>	'',
-	'5.0.2'	=>	'',
-	'5.1'	=>	'update_5.1.php',
-	'5.1.1'	=>	'update_5.1.1.php',
-	'5.1.2'	=>	'',
-	'5.1.3'	=>	'update_5.1.3.php',
-	'5.1.4'	=>	'update_5.1.4.php',
-	'5.1.5'	=>	'',
-	'5.1.6'	=>	'update_5.1.6.php',
-	'5.1.7'	=>	'update_5.1.7.php',
-	'5.2'	=>	'update_5.2.php',
-	'5.3'	=>	'',
-	'5.3.1'	=>	'',
-	'5.4'	=>	'update_5.4.php',
-	'5.5'	=>	'update_5.5.php',
-	'5.6'	=>	'',
-	'5.7' =>	'',
-    '5.8'	=>	'update_5.8.php',
+$versions = array (
+	'4.2' => 'update_4.2.php',
+	'4.3' => '',
+	'4.3.1' => '',
+	'4.3.2' => '',
+	'5.0' => 'update_5.0.php',
+	'5.0.1' => '',
+	'5.0.2' => '',
+	'5.1' => 'update_5.1.php',
+	'5.1.1' => 'update_5.1.1.php',
+	'5.1.2' => '',
+	'5.1.3' => 'update_5.1.3.php',
+	'5.1.4' => 'update_5.1.4.php',
+	'5.1.5' => '',
+	'5.1.6' => 'update_5.1.6.php',
+	'5.1.7' => 'update_5.1.7.php',
+	'5.2' => 'update_5.2.php',
+	'5.3' => '',
+	'5.3.1' => '',
+	'5.4' => 'update_5.4.php',
+	'5.5' => 'update_5.5.php',
+	'5.6' => '',
+	'5.7' => '',
+	'5.8' => 'update_5.8.php',
+	'5.8.1' => 'update_5.8.1.php'
 );
 ?>