Tilin wrote:
Things that usually fix this. So please start from the top to the bottom:
Restart Gmod
Restart Steam
Restart computer
Uninstall addons and reinstall only necessary
Reinstall Gmod
-I've had the issue on another server and resolved it with reinstalling Gmod, but something else might work for you.-
Did everything inclucing
Before reinstalling the game try this as well:
Steam > Library > Games > Right Click Garry's Mod > Properties > Local Files > Verify Integrity of Game Files
Nothing, anyone got any other idea?