Fatal error: Uncaught Error: Undefined constant "INDEX_FILE_LOCATION" in /home/www/giaonx/mcajournalorg/mca_ojs-3.4.0-9/lib/pkp/includes/bootstrap.php:30
Stack trace:
#0 /home/www/giaonx/mcajournalorg/mca_ojs-3.4.0-9/index.php(33): include()
#1 {main}
thrown in /home/www/giaonx/mcajournalorg/mca_ojs-3.4.0-9/lib/pkp/includes/bootstrap.php on line 30