How to remove an entry in the navigation bar when related page does not exist?

Hello,
I am now studying the Panels documentation, and I notice something I had seen before, which I find strange.
In the right sidebar under the My Recent Modifications section
Screenshot 2023-12-28 at 10-11-58 Panels - XWiki

and when inserting the words Домашня сторінка in a translator, it says, it means Home Page in Ukrainian.
So there is something wrong there, isn’t there?

PS: I am unsure if the Navigation panel is supposed to contain just imported Spaces or any new entry because it looks like it behaves like a breadcrumbs navigation sections. So what is it supposed to be really? Maybe my first question should have been why are there entries added here which are not part of the Confluence spaces imported?