This folder existed a long time ago, but for sure not in 3.10 branch .
The new URL was added here  and the 3.0.1 one removed here . This was
before the release of GN 3.0.0. I have no idea why GN is requesting these
3.0.1 files on start.
> Further, I find that the failing path is hard coded in the file
About this, it has been fixed since GN 3.10.3 .
> So I guess something else is the problem.
> The error thrown is
> *2021-03-13 11:47:04,937 ERROR [jeeves.service] - Exception executing gui
> service : java.lang.NullPointerException2021-03-13 11:47:04,937 ERROR
> [jeeves.service] - (C) Stack trace is :java.lang.NullPointerException*
> Any clues, anyone?