Fatal error: Uncaught Error: Call to undefined function import() in /home/aake8592/subdomains/jurnal.aakpekalongan.ac.id/lib/pkp/classes/metadata/MetadataSchema.inc.php:66
Stack trace:
#0 {main}
thrown in /home/aake8592/subdomains/jurnal.aakpekalongan.ac.id/lib/pkp/classes/metadata/MetadataSchema.inc.php on line 66