Issue loading DOI

OJS returning an incorrect error message for one of our articles

All DOIs (001-009) have been successfully deposited in Crossref.
Do we need to create a new DOI for this article or can you help us resolve?

Hi @DebL,

Are you creating DOIs manually for each of your articles? Here’s what I see in 3.3:

And, I am able to Assign it automatically (it chooses the next available DOI - but I might have this configured differently than you do). But it might be the case that the DOI you’re trying to assign is already in use by another one of your articles?

PKP Team