Problem of depositor article to the CrossRef

We used, OJS

We followed the steps to export the article from the OJS to CrossRef. At the end we get error as shown in the photos below:

What is the solution, please?

Hello @Ali_Fahem,

Please note that version of OJS that you’re using is no longer supported by PKP. I recommend that you upgrade to the newest version of OJS, as it is possible that your issue will be resolved by upgrading. However, other community members may wish to offer assistance.

Upgrading instructions are available in the PKP Administrator’s Guide and as part of our [Upgrade Guide] (

Information about the latest version of OJS can be found on the PKP Website

Best regards,

PKP Team

Thank you!
Can you connect me with someone who can help me to upgrade our system?

The username used for configuring the DOI plugin must contain the role as mentioned in the crossref welcome email. This will resolve your issue.