Great, but one issue – Blueprint 3D Review

I like this game, but it has this issue where I try to make my own levels, but it exits out of the game and says it quit unexpectedly. It says to send in a report on the app so they can fix the problem, but I've sent it in more than 25 times and it's not working. Please fix this issue for me.
Review by HCS on IPod on Blueprint 3D.