We are aware that Facebook login is currently not working on the PC client.
This is currently being investigated and and an update will be provide once the issue has been resolved.
We are trying to resolve this issue as quickly as possible, in the meantime please play the game on a mobile device if you have linked your account to Facebook.
We are sorry for the inconvenience caused.
[UPDATED - November 4, 2022]
The issue has now been fixed.
Please, make sure to reinstall the PC Client before trying to access again.
Thank you for your patience and we apologize for the inconvenience caused!