Freerouting not working board null

[golkit1]

I installed the free routing tool and try to run it.
I’m getting this error:
How can it be fixed?

[davidsrsb]

Freerouting is not part of the KiCad project - it is written in Java, which causes many problems

[retiredfeline]

Freerouting has its own Github website where you can report issues.

[3Dogs]

Do you have a valid edge on edges cuts?

[eelik]

This may explain it… Split into 3 seperate board from the same design