Map compiling problem

[Officer-Pie]

Hey guys. I recently got back into mapping. I made a basic map just to get back in the basic mapping ways. I compiled it, and played it. About 30 seconds into while I was playing it, it disconnected me and said "Disconnect: Client Timed out." Has anyone else had this problem and figured it out?

Thanks in advanced.

*EDIT*

Found out the problem, can't run it on compile.