Describe the issue or problem
After updating to OJS3.4 (and php 8.1) the DOIs (Medra agency) remain on submitted and never get registered. I also tried to manually export a DOI to import them into medra and in the logs I get the message at the bottom of this page.
if I try to export very old articles (the first ones) the export is carried out successfully. I add that during the update I had to use the resolveAgencyDuplicates.php tool because around 120 articles (out of several thousand) had problems with the DOIsSteps I took leading up to the issue
To reproduce the problem
- Go to the DOIs menu in dashboard
- Select an article
- Click on the button “Bulk actions” and then select “Export DOIs”
- A window pop up with the message “Error One or more invalid publication objects were included with the request.”
*What application are you using?
OJS 3.3.0-6/PHP8.1
Additional information
error.log
AH01071: Got error ‘PHP message: Slim Application Error:\nType: Error\nMessage: Call to a member function getData() on null\nFile: /var/www/ojs-3.4.0-6/plugins/generic/medra/filter/ArticleMedraXmlFilter.php\nLine: 187\nTrace: #0 /var/www/ojs-3.4.0-6/plugins/generic/medra/filter/ArticleMedraXmlFilter.php(90): APP\plugins\generic\medra\filter\ArticleMedraXmlFilter->createArticleNode()\n#1 /var/www/ojs-3.4.0-6/lib/pkp/classes/filter/Filter.php(498): APP\plugins\generic\medra\filter\ArticleMedraXmlFilter->process()\n#2 /var/www/ojs-3.4.0-6/classes/plugins/PubObjectsExportPlugin.php(486): PKP\filter\Filter->execute()\n#3 /var/www/ojs-3.4.0-6/plugins/generic/medra/MedraExportPlugin.php(145): APP\plugins\PubObjectsExportPlugin->exportXML()\n#4 /var/www/ojs-3.4.0-6/plugins/generic/medra/MedraPlugin.php(112): APP\plugins\generic\medra\MedraExportPlugin->exportAsDownload()\n#5 /var/www/ojs-3.4.0-6/lib/pkp/api/v1/dois/PKPDoiHandler.php(415): APP\plugins\generic\medra\MedraPlugin->exportSubmissions()\n#6 [internal function]: PKP\API\v1\doi…’
