Strange problem ... (Sniper Elite 3)

I played the game for 3-4 days, everything is fine and then I decided to add it to Steam as a side game and played further, all the rules. Then a day later it did not start for me and I was thrown to her page in the Steam store. I tried to re-upload the crack and crack files (but suddenly it helps), nothing. I tried to overwrite and also nothing. Now what?