Cannot login game by my Facebook account

In this case, you may be logged in via another Facebook account. Please follow these steps:

On Android devices

Go to Settings >> Account >> Select Facebook account >> Remove Account
Delete game and reinstall, and login to the game via your Facebook account

On iOS devices

Open Facebook app and logout your account
Open Safari browser, go to & logout your Facebook account (if you're logging in)
Select Settings >> Facebook >> Select Facebook account >> Delete Account
Open the game, logout and relog via your Facebook account

Last updated on: 07/06/2016