Having a really big problem

I'm working on a project for my class and I almost finished it when I got a bug after putting in some code to make the game to end.
When I take it away it works fine but I'm not sure what part of the code that ends the game is wrong.
Please help me ASAP.
Thank you!

ShootingRange2 is the working one.
ShootingRange3 is the one with the bug.

[jediaction]

Ok, what i got is.

1: When i tried to run it, it said error, that means that tehre is a nothing value somewhere in the game. EXAMPLE

When world start do NONE set opacity to 100%

NONE is an error

2: Is that, i looked at the details of the error, the error popped up when you added some variable in the game. i do not know where to start, because i did nto amek the game.

So there is the problem


oh and by the way...the shooting range 2 is cool, check out mine

Hey man thanks, after a about 5minutes of looking over my code again I figured it out. I think I over looked it when I was looking for it.
Thanks again.