I need support

This game is great but its not working on my MacBook Pro It worked for about a week then it would not play. I installed the new update; that did not fix the problem. I unistalled the game and now I cant reinstall it from the app store. I will give it a five for great graphics but ZERO for play time since it is not working on one of my devices. PS it works just fine on the iPad.

Master Blaster 2011 about Defense Zone 2