It just says that the "error occured", and seems like the problem is in the "exe" file itself. I've sent so many reports already, but seems like noone's going to do anything about it. It happenes completely randomly while it's working - when rendering, when working on the video, whenever. It also doesn't autosave things that I worked on like it did before (all this started after I reinstalled my windows 7).
I reinstalled the thing, cleaned the register and the appdata folder - NOTHING. I can't keep using this program. I'm rendering a video right now, but it will probably randomly crash again.
I also tried disabling multi core rendering and videocard processing like people said on the internet, but it doesn't work.
Guess I'll upload a screenshot with the error when it crashes again.