Keeps on crashing.,

Great game I love the concept (I have Taemin btw ☺️) but it keeps on closing the app whenever Im minutes into the game. It gets really annoying! Please fix it! I thought maybe it was because I have an iphone4, but thats not the case. Some other users have also said it crashes with them too. Please fix so I can give this awesome app 5 star!

史郎 メグミ about STAR POP - Stars in my palms, v4.1