t's been several times that I pass level 920, but the game does not advance me to level 921. Why?

Hi @mcaroesa and welcome to our adorable Community 😊 Can you please tell me which device and OS are you using for playing this game? 

Thanks, @mcaroesa First, I will ask you to check if your game is updated to the last version, it should be 1.13.5. You should also check if you have at least 2GB of free memory and the last but not the least I will ask you to do some troubleshooting steps for iOS devices. The last resort is always uninstalling the game but please note that if you do so you will lose all of your boosters.

https://community.king.com/en/blog/discussion/246638/is-your-game-crashing-on-an-ios-device

Sometimes, even the simple steps as force closing the game or logging out of your account and login back in could help. Thank you for your understanding. Let me know if your issue is resolved. Have a wonderful day 🤗