RGSS stoped to work

[Chaos17]

Hi,

I would like to know if there is a way to find what made the bug "RGSS stoped to work".
Because at the moment I am having that problem when I begin a random new battle.
The background and my battlers are shown (not my enemies) and then my game just crashes.
I can't reproduce this bug all the time so I feel insecure since I can't be sure what I am doing is right.

Is anyone here having an idea or a program to help me corner this bug ?
I can't just remove my scripts if I can't reproduce the bug all the time.

I removed this script since I just recently added it but it's just one the script I added.
But I am not sure if it's fault though.

Did the bug happened before ? yes and I was able to remove the script that made it happen but only because the bug happened on every battle not just randomly.