Well i was playing like day 27 or something and then I had every single save data slot full, so I was erasing some data and I saved my game, I left the game. I came again and half of my save slots were gooone :( so I started in one who were in day 14... Now I was in day 31 I think and I was exporting the save data too (I change the names of the saves, I guess I fucked up here unfortunately) and my pc crashes (nothing relate with the game, my pc is old haha) and the game closed. When I open it again, I lost the same data and was the anterior saves... So I tried import the save data than I "backed up" and I gets the error:

Something went wrong while loading the save. 
Log
Could not store preference value

So I erase all my data in game and tried re instale it but same happens, I was wondering If I can do anything to recover theses saves :(. And that's all, hope u have a nice day! (sorry for the inconvenience).