First of all, thank you very much for your effort on this!
I have to apologize but i've tried to reduce the game, but i ended with a non working state. I have to confess that this game was made two years ago, and i was pretty much more familiarized with the events and stuff. Now i can barely understand the logic behind my own events! (shame on me). Maybe if you give me more time, i'll try to do my best on it... i'm really sorry for this.
Btw, i tested the new version and unfortunately it give me another error, wich i'm pasting here.
This is happening on collision. I'll be glad to provide you any other information you may need.