Very very sorry, I have no idea what must have happened. Maybe I uploaded an outdated/broken exe in the last update. It should be fine now. Thanks for the comment I would never have noticed.
Sorry to bother again, but I'm apparemtly missing some sort of .NET frameworks. When the notification warnes me about it, I press to download it, but nothing is downloading. I tried downloading some from Microsoft site but unforunetly none seem to work. Probably because I don't really know what am I downloading.
Thanks for help so far btw.