When i play dragon from vs when i finish the battle and then my screen cannot touch anything when i play others game is nothing happen only dragon city its stuck on my screen....if you says my storage is not enough i just use 14/100 gb on my phone and tablet i think is bug...because i was using 2 device to confirm it

@Apit-Tom That happens to me also sometimes. If it happens often, you should report it. Here is how to contact the support: https://forums.socialpointgames.com/topic/80/how-to-report-game-problems-to-support