Mass crashing from EXCEPTION_ACCESS_VIOLATION

Hi,
I’m not sure if I’m having the same issue as this guy here: http://forum.facepunch.com/showthread.php?t=1543307
but on my server with a custom gamemode, groups of users (around 3-7) are all crashing at once randomly. They’re typically close to each other when they crash, but not everyone that is nearby crashes.
My gamemode is not round based like the guy I linked and there is not anything I know of that’s going on when it happens.
MDMP:
http://dumps.metastruct.uk.to/dumper.py?dump=hl2_161029_crash_2016_12_6T4_23_56C0.mdmp

Here’s one from another user http://dumps.metastruct.uk.to/dumper.py?dump=hl2_161029_crash_2016_12_8T0_59_21C0.mdmp

.mdmp files are useless without me being able to download them.

Here they are:
https://www.dropbox.com/s/8oa4apfni6k3ti1/hl2_161029_crash_2016_12_6T4_23_56C0.mdmp?dl=1
https://www.dropbox.com/s/ils6i49apfbmnpl/hl2_161029_crash_2016_12_8T0_59_21C0.mdmp?dl=1

Its this crash:

Thanks!