hey guys, please help. I have OJS version 3.2.0.3, currently there is a problem when I click on the OAI record list, an error message appears as shown in Figure
the following displays the error:
Fatal error: Uncaught Error: Call to a member function getId() on null in /home/pascaban/jurnal.pascabangkinang.ac.id/classes/oai/ojs/OAIDAO.inc.php:184 Stack trace: #0 /home/pascaban/jurnal.pascabangkinang.ac.id/lib/pkp/classes/oai/PKPOAIDAO.inc.php(250): OAIDAO->setOAIData(Object(OAIRecord), Array, true) #1 /home/pascaban/jurnal.pascabangkinang.ac.id/lib/pkp/classes/oai/PKPOAIDAO.inc.php(214): PKPOAIDAO->_doCommonOAIFromRowOperations(Object(OAIRecord), Array) #2 /home/pascaban/jurnal.pascabangkinang.ac.id/lib/pkp/classes/oai/PKPOAIDAO.inc.php(148): PKPOAIDAO->_returnRecordFromRow(Array) #3 /home/pascaban/jurnal.pascabangkinang.ac.id/classes/oai/ojs/JournalOAI.inc.php(178): PKPOAIDAO->getRecords(Array, NULL, NULL, NULL, 0, 100, 116) #4 /home/pascaban/jurnal.pascabangkinang.ac.id/lib/pkp/classes/oai/OAI.inc.php(507): JournalOAI->records('oai_dc', NULL, NULL, NULL, 0, 100, 116) #5 /home/pascaban/jurnal.pascabangkinang.ac.id/lib/pkp/classes/oai/OAI.inc.php(85): OAI->ListRecords() #6 /home/pascaban/jurnal.pascabangkinang.ac. in /home/pascaban/jurnal.pascabangkinang.ac.id/classes/oai/ojs/OAIDAO.inc.php on line 184
if I deactivate the Dc folder in plugin > oaimetadaformats the list records will appear as shown below
Link Oai: https://jurnal.pascabangkinang.ac.id/index.php/jrmi/oai
Please help where is the error