After DOIs being automatically assigning to articles, I realised that they are not found.
This is after new URLs were created for previous articles.
Part of the message on the articles is:
Failed … ISSN “…” has already been assigned, issn (…) is assigned to another title (…).
Thanks for your message. This type of error typically indicates that the journal title being submitted for the submission in question does not match EXACTLY the journal title previously registered for this ISSN. Do you have a submission ID that is producing this failure message that you can share with me?