There are some options to fix that i found online, donno if they work.

1. join singleplayer first then join the Our gmod server.
2. type "vgui_allowhtml 0" in console before joining.
3. type "-autoconfig" in startup options before starting the game.

There are some options to fix that i found online, donno if they work. 1. join singleplayer first then join the Our gmod server. 2. type "vgui_allowhtml 0" in console before joining. 3. type "-autoconfig" in startup options before starting the game.