Stuck on level 540

Welcome to our sweet and amazing community @sandy09! Did you make sure both your device and game software are up to date? If not, please make sure these are updated. Let me know how this goes. 

I’ve posted some links below that may help. Let me know if this fixes your issue. 
https://community.king.com/en/farm-heroes-saga/discussion/230379/superstar-information-post-crashing-on-android#latest

https://community.king.com/en/farm-heroes-saga/discussion/230198/superstar-information-post-how-to-solve-syncing-problems-if-using-an-ios-device#latest