Crash on spawn

I am attempting to play a new game on MoronYard but every time i spawn it causes GMod to crash. No one else seems to be having the issue and has only recently seemed to be an issue (I recently built a new rig)

Looking at the trace the access violation doesn’t give me much information. Is there a way to get the pdb so I can see if its something I can fix?

[editline]10th April 2015[/editline]

Specifically this seems to happen on spawn for sanctuary