This is a real error message from Archivematica, copied here in its entirety:
@joe I think that might be one of the underlying servers default messages. I seem to remember getting "Whoopsie" at one point.
@andrewjbtw ah that makes sense! It did actually work as a polite nudge for me to realize I had a file open from a package I was trying to delete
digipres.club is a space for folks interested in productive conversations about, well, digital preservation! If you enjoy talking about how to do memory work with computers, or even with cardboard boxes of old photos, you belong with us on digipres.club. Many of us are/were Twitter users looking for an inclusive and community supported approach to social media. If any of these things sound good to you, consider joining us now.