Yesterday when i loaded a save then i got a message saying "one or more saved games corrupted and no longer available." then ask for yes or no to delete or not.Later i saved my game and got off but earlier today the save was not there. So i thought it didn't save and played from a different save and later saved again in case i choose the wrong thing. I choose a option and tried to revert to a save again and it wasn't there. I save multiple time and they never show up so i have to start from one save and not turn off my Xbox if i want to beat the game. I need help to fix this because i have 20 hours on this game and i don't want to start over.