Savegame gone

I sold my stuff then i spoke to radzig kobyla and finished the Band of B. DLC.Then i started the womens lot dlc and played it for like 2 days. I always could play as Theresa and now everthings gone and i am right after where i sold my stuff. So are all the hours if played gone. Never had that before. Btw i play on Xbox one S. Thanks for helping.
If i go on load game it says the file was modified and is broke now.