GMod error

I’m getting and error on GMod 10. Whenever I start it up, it says:

SteamMountFileSystem(4236,17501,0x753fd28=,0753fc18)failed with error 106:
Failed to resize the cache file”

Can you help me? My other Steam games work but GMod doesn’t! I wanna play GMod again!! D;

Also I tried restarting Steam.

Can anyone help me?

Bcak up your addons and delete your garrysmod folder then if it doesn’t work find the addon that might be cause the problem.

Ok, it’s workin’! Thank you cdr248!!