New to forum and deer hunter 2014 issue

Hello everyone , I am new to this forum.i have been playing deer hunter 2014 and made it to region 6. But after I down loaded it ( I think it was mt St. Helens ) my deer hunter game will not even start up. I tap on the icon on my iPad and then it will switch to the screen as though it's going to start the game but then it just goes back to my main screen. Any suggestions? I even attempted to go back to the store but the store just shows deer hunter 2014 as being open and it does the same thing I mentioned previously.