I scanned the QR code for “worthy” and got the message “This user is already pending at your contact list”. I have not scanned this previously and it is not pending in my list. Also the message should probably read “in” and not “at”?
I noticed the same with the version released today (May 14).
The error/notification seems to (also) appear when you have a pending invite from the user. So they’re not in your contacts list but their (not your) invite is pending.
Still, it is still quite confusing as at this stage we don’t necessarily know and can’t correlate some QR code image with a name in pending invites.