I currently have 4 journals in OJS with the version used 3.1.2-4.
Recently I had a problem with DOI registration when I was going to publish an article, the DOI number I got did not automatically make a deposit to the Crossref server. However, this problem only applies to 3 journals, and in one of the journals, I have a DOI deposit when publishing articles automatically runs well.
I’ve also enabled auto-configuration assigned to CrossRef in each journal.
However, when a manual deposit is made on the crossref page for each article, there are no problems found in all journals (Active deposit status)
Please help how to solve this problem.