Hi there! Sorry you are having troubles with the battle app. I am not sure if i understand what you mean by this though. My best guess is that you are trying to access the battle app in the caves and you are getting a grey screen? If so, that is a known bug on one of the levels of the caves. It doesnt happen on any other level than that specific one. If that isnt what you meant please clarify and ill see if I can help. Thanks! ☺