Problems with Errors

When EagleFiler starts I have a few errors because of misplaced files.
(I moved them and it doesn’t know where they are)

I understand what I did, but now I just want to delete the errors.
I followed the “Reveal in Library” but when I press delete nothing happens, also when I right click (or option click) “delete” is greyed out.

How can I make these annoying error messages disappear?

now i figured it…
Of course after I posted.
But if anyone else had this problem, I couldn’t “delete” because the file was in EagleFiler’s trash. After I emptied “EagleFiler’s Trash” the pop-up and error messages went away.

sweet.