Prombles with starting the game up.

Is anyone having trouble with Dokkan battle when you start to up the screen with Goku and freza it say communication error has occurred check you connection. I dont know what its promble but it wont start up and I dont know what to do I restarted the game and my phone I have a iPhone 6s anyone else having the same prombles.

Nuvynuvtmivin about DRAGON BALL Z DOKKAN BATTLE