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.
It's a roadblock right? So you have the normal options like sending out requests for help to facebook/kingdom friends, waiting a certain number of hours of paying gold bars to pass it. Is this what you mean? Have you tried these options?