Issue Data - Accidentally clicked "Issue Objects DOIs" and cannot reassign DOI to the articles in the issue


We are using OJS 2.4.8 for one journal. It has been published one issue in the journal. All articles in that issue have assigned DOI. When we navigating the issue data, unfortunately, we accidentally clicked both “Exclude Issue Objects” and “Clear Issue Objects” under Issue Objects DOIs for testing purpose. However, we cannot reassign the DOI for those published articles in that issue after this, even though we have tried to set the Public Identifier Plugin in System Plugins. Fortunately, any newly published article in that issue is fine and have DOI linked.

May we know, is there a way to make the DOI reassigning back to those article in that issue? Have any setting we can do?

Hope to hear from you all.

Best regards,