Such a situation may occur in the following cases:

 

• If you play on one game account from different devices simultaneously.
• If you are trying to enter another player's cafe whose game version is different from yours (in this case you just need to wait until the update will be released for your account).
• If you are using simulators, cloning applications, or a computer to play the game. 

If you play the game only on one device, and you don't use any side apps but still face this problem, please, try to delete the game from your device and download it again. If it doesn't help, please contact our support team.