GMOD Main Menu Not Working!

Alright I have recently updated my gmod and now the menu doesnt work!

If i open the console and see what is happeneing when i press the menu buttons all it says is ‘Unknown Command “menu_singleplayer”’

Similar message for all the other buttons except load game, options, exit and play multiplayer (but even then no servers show up).

Can someone please tell me how to fix this, thanks in advance :slight_smile: