Oh, that's no good!
My guess it's a shader issue, but we use opengl 1.3 or something, which is very old at this point so it should be safe. Does it crash as soon as you talk to the first guy (that talks about demons) in the motel or?
Sorry about that, should have showed some screenshots.
These errors show up on the main menu on launch. Also when opening the save game menu it spams the console with '[doxpath]save-3' through 6 being unable to find(I have saves 1 and 2 used). Probably just an info thing you shouldn't log to user's console, though I did fill those up just to try.

This is the battle I crash at, it occurs after the pixelated dissolve to black happens(I presume the animation into battle).

Looking at the save file folder, I got some combat logs which I don't think matter but here it is, among these files the only difference is sometimes different initialWait values:
Battle started Targetable monsters: 1 Adding monster: dirtydawg Entity BENZOMON: initialWait: 22 Entity Dirtydawg: initialWait: 24
Hope that helps.