Gmod refuses to start. I have a problem report.

Problem signature:
Problem Event Name: APPCRASH
Application Name: hl2.exe
Application Version:
Application Timestamp: 50aaaa87
Fault Module Name: ntdll.dll
Fault Module Version: 6.0.6001.18538
Fault Module Timestamp: 4cb733dc
Exception Code: c0000005
Exception Offset: 00069bff
OS Version: 6.0.6001.
Locale ID: 1033
Additional Information 1: bfef
Additional Information 2: e8adce1c2b9e7be834b4063ac3c53863
Additional Information 3: bfef
Additional Information 4: e8adce1c2b9e7be834b4063ac3c53863

I know i posted this before but i felt the title was driving people away