Light mass Crash help

Can anyone tell me how I can fix this and what’s going wrong?

Please ask for more info if you need, I will tell you as much as I can!

Maybe there is some old data that gets used and it causes array out of bounds.


Delete these following folder.
image
Rebuild the project and rebuild the lights.

Tried that but still got the crash, I have other levels that all work fine but just this level can’t build lighting.