Update for iPod 4G, please!!!

It works fine on my mums iPhone, cool game, nice graphics, never crashed once! So I went ahead and downloaded Block Story on my iPod 4G and it kept crashing: I didnt get to play the game at all!!! Please update! If not, Ill have to keep rating it lower and lower! Thank you!

Mini Black Widow about Block Story Free, v8.0.6