Are you on iOS? You can try to recover your game by logging back into the Game Center. It works for some members but not everyone. I hope this does for you.
To log back into Game Center, please follow these instructions on your device:
1. Device Settings (little silver cog icon on your device)
2. scroll all the way down to Game Center
3. tap Game Center and login where it says Apple ID.
4. Restart Bakery Story 2.