Journal Issue DOI not registered with CrossRef througt OJS

Describe the issue or problem
Issue DOI is not sent to CrossRef for registration. One of our journal published a new issue yesterday ( but the issue DOI is still not resolving. All article DOI are correct.

Two other issues have already been published by the same journal and issue DOI was registered correctly (ex:

I have check the plug in configurations and it is set to generate/register DOI at the issue level. OJS DOI reports is only logging article DOI not issue DOI, so I am not sure of what causes the problem.

Any ideas?

What application are you using?


hello @pilas
which one? I see that all DOI’s are resolved.