BrayBaker 3.4 error from cosole

Hello, thanks to many people from this site, I get to know BrayBaker 3.4. I just started using it however, I have an instant error from console.
It says
“Traceback (most recent call last)
File “” line 1748 in bevent
File “” line 834 in prescript
File “” line 1199 in script
AttributeError: list can’t be empty, at least one layer must be set”
I am using Blender 2.41
Can anyone figure out what I am supposed to do to fix this?