Crash either on join or 45 minutes into game

Hello,

I usually crash when I join a server or about 45 minutes afterwards with an ACCESS VIOLATION error, code: c0000005. Below is the MDMP

http://dumps.metastruct.uk.to/dumper.py?dump=hl2_160223_crash_2016_3_2T2_54_42C0.mdmp

What I’m trying to play is a Clockwork gamemode so I’m thinking that might be the cause of it, since when I had my game parked idle in SP for about 45 minutes nothing happened.

Thank you for your time.

EDIT: Now, I get this: http://dumps.metastruct.uk.to/dumper.py?dump=hl2_160223_crash_2016_3_2T23_2_55C0.mdmp

EXCEPTION_BREAKPOINT?