My iphone is 6sp cannot load in the game

After I downloaded the game with my iphone, I entered the loading game, but there was no response during the connection process, and it finally showed that the version of the game had not been verified, please restart the game? What’s the problem? Can you help me solve it?

That usually happens when connection is not stable. Or you in fact have old version of game check game center.

Another thinh to check is to log out and log in back to game center.

I do not know any more apple tricks.