[Linux] GMPublisher doesn't render itself

[Turelk]

Recently i was forced to reinstall my system, which resulted in breaking GMPublisher, it doesn't render anything. Apparently some of the libaries are missing, but i don't know which.

Screenshot:

GMPublisher Log:

gmpublisher v2.10.0
Initializing Steamworks...
Initializing Settings...
Initializing AppData...
Initializing Transactions...
Starting GUI...
Initializing Game Addons...
Locating Garry's Mod...
Steam is not connected, parsing Steam library folders...
Failed to parse Steam library folders. Waiting for Steam...
[S_API] SteamAPI_Init(): Loaded '/home/turelk/.local/share/Steam/linux64/steamclient.so' OK.
Setting breakpad minidump AppID = 4000
SteamInternal_SetMinidumpSteamID:  Caching Steam ID:  76561198966550150 [API loaded no]
[Steam] Client initialized
Locating Garry's Mod...
Getting Garry's Mod location from Steamworks...
Located!
Downloaded up to date addon whitelist: [
    "lua/*.lua\0",
    "scenes/*.vcd\0",
    "particles/*.pcf\0",
    "resource/fonts/*.ttf\0",
    "scripts/vehicles/*.txt\0",
    "resource/localization/*/*.properties\0",
    "maps/*.bsp\0",
    "maps/*.lmp\0",
    "maps/*.nav\0",
    "maps/*.ain\0",
    "maps/thumb/*.png\0",
    "sound/*.wav\0",
    "sound/*.mp3\0",
    "sound/*.ogg\0",
    "materials/*.vmt\0",
    "materials/*.vtf\0",
    "materials/*.png\0",
    "materials/*.jpg\0",
    "materials/*.jpeg\0",
    "materials/colorcorrection/*.raw\0",
    "models/*.mdl\0",
    "models/*.vtx\0",
    "models/*.phy\0",
    "models/*.ani\0",
    "models/*.vvd\0",
    "gamemodes/*/*.txt\0",
    "gamemodes/*/*.fgd\0",
    "gamemodes/*/logo.png\0",
    "gamemodes/*/icon24.png\0",
    "gamemodes/*/gamemode/*.lua\0",
    "gamemodes/*/entities/effects/*.lua\0",
    "gamemodes/*/entities/weapons/*.lua\0",
    "gamemodes/*/entities/entities/*.lua\0",
    "gamemodes/*/backgrounds/*.png\0",
    "gamemodes/*/backgrounds/*.jpg\0",
    "gamemodes/*/backgrounds/*.jpeg\0",
    "gamemodes/*/content/models/*.mdl\0",
    "gamemodes/*/content/models/*.vtx\0",
    "gamemodes/*/content/models/*.phy\0",
    "gamemodes/*/content/models/*.ani\0",
    "gamemodes/*/content/models/*.vvd\0",
    "gamemodes/*/content/materials/*.vmt\0",
    "gamemodes/*/content/materials/*.vtf\0",
    "gamemodes/*/content/materials/*.png\0",
    "gamemodes/*/content/materials/*.jpg\0",
    "gamemodes/*/content/materials/*.jpeg\0",
    "gamemodes/*/content/materials/colorcorrection/*.raw\0",
    "gamemodes/*/content/scenes/*.vcd\0",
    "gamemodes/*/content/particles/*.pcf\0",
    "gamemodes/*/content/resource/fonts/*.ttf\0",
    "gamemodes/*/content/scripts/vehicles/*.txt\0",
    "gamemodes/*/content/resource/localization/*/*.properties\0",
    "gamemodes/*/content/maps/*.bsp\0",
    "gamemodes/*/content/maps/*.nav\0",
    "gamemodes/*/content/maps/*.ain\0",
    "gamemodes/*/content/maps/thumb/*.png\0",
    "gamemodes/*/content/sound/*.wav\0",
    "gamemodes/*/content/sound/*.mp3\0",
    "gamemodes/*/content/sound/*.ogg\0",
    "data_static/*.txt\0",
    "data_static/*.dat\0",
    "data_static/*.json\0",
    "data_static/*.xml\0",
    "data_static/*.csv\0",
    "data_static/*.dem\0",
    "data_static/*.vcd\0",
    "data_static/*.vtf\0",
    "data_static/*.vmt\0",
    "data_static/*.png\0",
    "data_static/*.jpg\0",
    "data_static/*.jpeg\0",
    "data_static/*.mp3\0",
    "data_static/*.wav\0",
    "data_static/*.ogg\0",
]
Locating Garry's Mod...
Getting Garry's Mod location from Steamworks...
Located!
[WebView] [INFO] "Initial locale: en-US"
GStreamer element autoaudiosink not found. Please install it

(WebKitWebProcess:4119268): GLib-GObject-CRITICAL **: 21:06:41.272: invalid (NULL) pointer instance

(WebKitWebProcess:4119268): GLib-GObject-CRITICAL **: 21:06:41.272: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed
Steam connected!
Getting Garry's Mod location from Steamworks...
Located!
Discovered 260 addons

[G4L4XY-673]

i'm having the exact same issue, and i tried looking for missing dependencies but couldn't find any.

for reference, i am using Arch