Please, follow these simple steps in case you already have your game connected to Facebook and are willing to log in to a different Facebook profile within the game:
1. Log out of your current Facebook profile on the in-game Settings page.
2. Force close the game.
3. Log out of all your Facebook profiles directly in the Facebook application.
4. Open the game, go to the Settings page, and press the “Sign in with Facebook” button.
5. Press “Log in to another account” and enter the credentials of your desired Facebook profile.
6. Wait a few minutes until your progress is restored and enjoy the game!