Big Problem

I know almost nothing of the game. When I downloaded it, the first thing they need to do is connect to Game Center. Well that works fine but then it must load save files(whatever that is). I keep trying but after a while it says:Disconnected! Reconnect now? I dont know why. My Wi-Fi is fine so plz read this and fix it. Well if you can

ROCKET8244 about Call of Mini™ Dino Hunter, v3.1.9