Mistake unknown even to experts

All hi, I want to ask for you the help, there was a problem with start of a game.
To all this I played any glitches, or bugs have quietly strummed 25 hours, but that day, day has come yesterday when everything has collapsed.
The problem consists that now as I press every time to play, at me the unknown mistake jumps out.
I have tried to correct her independently, namely have taken all advice from support of Steam.
On the Internet about it it is written nothing, and my last hope you are friends, I ask you, help!
Forgive for my English
(On a screenshot it is written - it wasn’t succeeded to start process of Kingdom Come Deliverance, and you are farther you see.! 2018-02-19|690x457