Garry's Mod KEEPS CRASHING

I don’t know what is going on. After the update garrysmod is randomly crashing every 5 minutes or so. Its very annoying :confused:

[editline]21st December 2012[/editline]

-UPDATE- Can’t even play garrysmod it keeps crashing every minute or so please help!

[editline]21st December 2012[/editline]

and steam crashes also