Hello! I have the same issue almost at the end, day 90 something. So it's juste bad luck and there is nothing to do? Because people seems to have unlocked all the endings. Is downloading the game and doing it again will work that time or not?
Re-downloading won't help, it's a problem with the save file. It gets bigger and bigger the longer you play until it is so big the game can't load it anymore.
If you're handy with a text editor you can repair it yourself otherwise unfortunately you're out of luck
