57/5000 Problems with the new OJS version regarding DOI registration

Good afternoon, I have problems with the new version of OJS, our Geografares journal has had all DOI records disabled, and the message “404 Not Found” appears when you click on the DOI registry link. Could you help me with this? what to do? I send the Geografares page link to check what I indicate

Best Regards

Claudio Zanotelli