Fatal error: Uncaught Error: Undefined constant "INDEX_FILE_LOCATION" in /home/aake8592/subdomains/jurnal.aakpekalongan.ac.id/lib/pkp/includes/bootstrap.inc.php:32
Stack trace:
#0 {main}
thrown in /home/aake8592/subdomains/jurnal.aakpekalongan.ac.id/lib/pkp/includes/bootstrap.inc.php on line 32