We're aware of an issue with Facebook purchases for all King Games and our team is on it. 🛠️ Hang tight while we fix things! You can still enjoy the game, and we'll keep you posted once it's solved.
@gscarfino On the mobile version boosters are saved to your device and not the game data, so you can use them when offline. This means that updates, crashes or device changes can cause you to lose your boosters. So it is not a good idea to store too many of the boosters that you win on the mobile version. You do not lose your gold bars. If you purchased the boosters you can get them back.