It is possible to restore the progress only in case you have been using cloud synchronization before the loss of the progress. On IOS devices you can synchronize your progress using ICloud and Game Center.
Please note that Facebook does not support cloud synchronization for this game!
To restore your progress:
- make sure you are logged in to the same iCloud account and Game Center. ICloud should be turned on and running.
- when starting our game, there will be a login in the Game Center - it needs to be resolved if necessary. But usually it happens automatically.
Re-start the game after that.