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.
Check in the settings menu that you are still connected to Kingdom/Facebook, whichever one you use. If you can, reconnect. If you can't then log in and out again to see if your levels return.