This games crashes alot fix them

So I just got this game and when i was playing it started to crash and get out can you please update this game and fix the crashes. I really like it but I cant play it because it crashes please please fix the crashes. Fix the crashes on the iPod 4 generation .plz plz plz update it PLZ

Klkkkkkkkkkkkkkkkkkkkkkkkkkkkk about N.Y.Zombies 2