If you are having trouble logging into the game using Facebook, this may be due to a synchronization issue between the game and the Facebook account on your device.

Steps to Resolve the Issue:

1) Remove all Facebook accounts from your device.
2) Log in to Facebook using the correct credentials for the account linked to your game.
3) Reload the game.
4) Go to the in-game Settings and tap on Facebook.
5) When prompted, select the correct Facebook account.

Additional Notes:

If the Facebook button is missing from your in-game settings, this means you have indicated an age that does not meet the requirements to use this feature. This is in accordance with the terms and conditions effective from May 25, 2018.