BrawlBox causes BSOD

[Quanno]

Sometimes when I'm working with BrawlBox, I edit what I want to edit, and when I try to close it (both with saving and without) I suddenly get a blue screen...
The error is IRQL_NOT_LESS_OR_EQUAL.
This doesn't happen everytime I close BrawlBox but it does happens a lot.
How the hell can I fix this?

Oh, btw, If I save something and I get a BSOD, it is already saved when I check it, so it happens right after i close BrawlBox

Help appriciated!