Everything on my Gmod is invisible or not there.

Well, my garrys mod has been, to say the least; VERY buggy. This happens, and then when I try to rejoin, I get a lump error. I’ve been trying to fix this, ive been having it for a while, and I don’t know how to fix it. Someone please help me /sadfaec.
Here are the screen shots of it.

Also, here is the error I recieve whenever I try to retry to a server after it happens.

I do have CS:S, and HL2, they’re all working fine. I’ve verified my Cache several times. My start up commands are -noborder -gl.