Game crashes/freezes

So my game crashes for last 3-5 days for some reason. It usually happens when I kill a lot of enemies or pick up a lot of items, can’t figure it out completely.
Usually game just freezes with last game sound effect on loop and I’ve got to close it myself or it’s just crashes randomly. Rarely it shows some error messages which I will upload in these theme. [I can only upload one of them, but they are pretty similar. Some of the text is in Russian btw.]

I tried: Changing dx10 to dx9 (I’m still on dx9), turning all “check mark” effects off, turning all graphics to minimum, turning compatibility for Windows Vista (there’s no option for Windows XP).

What could be the problem? This thing happens from every 3 to 30 minutes and is really uncomfortable.