my map couse the game to crash

[Batz]

i trying to fix this problem for a few days and counldn't find it.
it usually crash after about 1 minute of playing and there is noth special going on when it crash.
after it crash it gives me this error massage, does any one know what it mean?????????

 

[Vexen.X]

Most causes are linked back to a trigger or event in your map that causes an error (using a null value in an equasion, infanite loops, etc). The first thing you should do is check over any periodic events you may have for logical errors.

Or you can disable all triggers, and start reanabling them 1 at a time until you find out which one crashses the map

 

[Batz]

help plz...

this is the trigger that make it crash, it run between 1-7 times and then crash...
can any one spot an error in it?
each variable contain some thing so there isn't a null.
if you have any question about it just ask.