Lost all saves (BioShock 2)

I played the game calmly, got to the point where I needed to turn on the pumps, from that moment I started writing that they could not load the list of saves, when I went to the menu all the saves were gone, and when I left the game and decided to start again, the game stopped running altogether , the game logo appears and immediately crashes without errors, what to do in general, the game was running normally