IPad Issue

[BeckStar]

you could try a hard reset, press and hold both the sleep and home buttons for about 10 to 15 seconds (ignore the red slider), after which the Apple logo should appear. Wait untill it restarts and then try to open the game again.
What iPad model you've got ?
-My iPad 2 works fine after the last update..

Have you checkd if there's update in the appstore ? There's also an update of iOS, maybe that's the reason ?