Fatal error: Uncaught Error: Interface "PKP\Services\interfaces\EntityPropertyInterface" not found in /home/aake8592/subdomains/jurnal.aakpekalongan.ac.id/lib/pkp/classes/services/PKPSubmissionFileService.inc.php:28
Stack trace:
#0 {main}
thrown in /home/aake8592/subdomains/jurnal.aakpekalongan.ac.id/lib/pkp/classes/services/PKPSubmissionFileService.inc.php on line 28