diff --git a/src/main/java/lode/LODEGeneration.java b/src/main/java/lode/LODEGeneration.java
index 5b4af5a..82ee47c 100644
--- a/src/main/java/lode/LODEGeneration.java
+++ b/src/main/java/lode/LODEGeneration.java
@@ -69,17 +69,11 @@ public static String getLODEhtml(Configuration c, File lodeResources) throws Exc
 					c.getMainOntology().getOWLAPIModel());
 			content = applyXSLTTransformation(content, c.getOntologyURI(), lang, lodeResources);
 			return (content);
-		} catch (OWLOntologyStorageException e) {
-			logger.error("Error while applying LODE. Error while applying the XLS file: " + e.getMessage());
-			throw e;
-		} catch (TransformerException e) {
-			logger.error("Error while applying LODE. Error while applying the XLS file: " + e.getMessage());
-			throw e;
-		} catch (UnsupportedEncodingException e) {
+		} catch (OWLOntologyStorageException | TransformerException | UnsupportedEncodingException e) {
 			logger.error("Error while applying LODE. Error while applying the XLS file: " + e.getMessage());
 			throw e;
 		}
-	}
+    }
 
 	/**
 	 * Method that uses the loaded ontology and parses it in case there are imports
diff --git a/src/main/java/widoco/Configuration.java b/src/main/java/widoco/Configuration.java
index e8e0c0f..48255cf 100644
--- a/src/main/java/widoco/Configuration.java
+++ b/src/main/java/widoco/Configuration.java
@@ -513,6 +513,9 @@ public void loadPropertiesFromOntology(OWLOntology o) {
 
 			mainOntologyMetadata.setCiteAs(cite.toString());
 		}
+	}
+
+	public void loadNamespaceDeclarations(OWLOntology o){
 		//load all namespaces in the ontology document.
 		this.namespaceDeclarations = new HashMap<>();
 		OWLOntologyXMLNamespaceManager nsManager = new OWLOntologyXMLNamespaceManager(o, o.getFormat());
diff --git a/src/main/java/widoco/LoadOntologyInThread.java b/src/main/java/widoco/LoadOntologyInThread.java
index de2965a..a47d198 100644
--- a/src/main/java/widoco/LoadOntologyInThread.java
+++ b/src/main/java/widoco/LoadOntologyInThread.java
@@ -45,6 +45,7 @@ public void run() {
 		try {
 			WidocoUtils.loadModelToDocument(c);
 			c.loadPropertiesFromOntology(c.getMainOntology().getOWLAPIModel());
+			c.loadNamespaceDeclarations(c.getMainOntology().getOWLAPIModel());
 			if (showGui) {
 				pointerToMain.switchState("finishedLoading");
 			}
diff --git a/src/main/java/widoco/gui/GuiController.java b/src/main/java/widoco/gui/GuiController.java
index 8b9fe29..d29eca7 100644
--- a/src/main/java/widoco/gui/GuiController.java
+++ b/src/main/java/widoco/gui/GuiController.java
@@ -210,12 +210,12 @@ public GuiController(String[] args) {
 			}
 			i++;
 		}
-		// this creates the tmp files
+		// this creates tmp files for the conversion assets
 		config = new Configuration();
 		try {
 			this.config.reloadPropertyFile(confPath);
 		} catch (Exception e) {
-			System.out.println("Configuration file could not be loaded: " + e.getMessage());
+			logger.error("Configuration file could not be loaded: " + e.getMessage());
 			return;
 		}
 
@@ -291,6 +291,7 @@ public GuiController(String[] args) {
 				// TO DO: improve this a little so language is passed on to load properties and generate doc.
 				for (String l : config.getLanguagesToGenerateDoc()) {
 					logger.info("Generating documentation for " + ontology + " in lang " + l);
+					config.loadNamespaceDeclarations(config.getMainOntology().getOWLAPIModel());
 					if (getOntoMetadata) {
 						logger.info("Load properties from the ontology in lang " + l);
 						config.loadPropertiesFromOntology(config.getMainOntology().getOWLAPIModel());