No need to panic!
If you re-opened the app and see your account has restarted as a level 1 guest, there’s a chance you were disconnected from Facebook. Connect the game back to Facebook and your full account should come right back :)
Read here how to Connect to Facebook.
If your account wasn’t connected to Facebook, please contact our customer support team directly via the ‘Contact us’ button below, and the team will help you threw what can be done. We highly recommend connecting your account with Facebook to make sure your account always stays available and saved on all devices!
