With OJS 3.3.0.13 when trying to register or export articles on mEDRA the system gives me the following error:
Fatal error : Uncaught Error: Call to a member function setDeployment() on null in /var/www/vhosts/rivistateoria.eu/httpdocs/classes/plugins/PubObjectsExportPlugin.inc.php:388 Stack trace: #0 /var/www/vhosts/rivistateoria.eu/httpdocs/classes/plugins/PubObjectsExportPlugin.inc.php(196): PubObjectsExportPlugin->exportXML() #1 /var/www/vhosts/rivistateoria.eu/httpdocs/classes/plugins/PubObjectsExportPlugin.inc.php(171): PubObjectsExportPlugin->executeExportAction() #2 /var/www/vhosts/rivistateoria.eu/httpdocs/classes/plugins/DOIPubIdExportPlugin.inc.php(29): PubObjectsExportPlugin->display() #3 /var/www/vhosts/rivistateoria.eu/httpdocs/lib/pkp/pages/management/PKPToolsHandler.inc.php(94): DOIPubIdExportPlugin->display() #4 /var/www/vhosts/rivistateoria.eu/httpdocs/lib/pkp/classes/core/PKPRouter.inc.php(395): PKPToolsHandler->importexport() #5 /var/www/vhosts/rivistateoria.eu/httpdocs/lib/pkp/classes/core/PKPPageRouter.inc.php(246): PKPRouter->_authorizeInitializeAndCallRequest() #6 /var/www/vhosts/rivistateoria.eu/httpdocs/li in /var/www/vhosts/rivistateoria.eu/httpdocs/classes/plugins/PubObjectsExportPlugin.inc.php on line 388
what to do?
can someone help me? thank you