Hii,
Have you tried clearing cache if not please try that and if it does not help then try reinstalling the and then see.
If this also does not help then please feel free to contact me.
Hello,
(1 reinstall your game (make sure your account is bound too a social media platform or Moontom account)
(2 you can try to clear chache if possible
(3 contact the Customers service if both dont work