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.
I’m having the same issue. No password changes on Facebook, but keep getting disconnected from Facebook login. Tried to login tonight after update to Candy Crush Saga yesterday and getting wrong username or password error. Always worked before today. Issue is on iPad version.