Fatal error: Uncaught Error: Class "PKP\security\authorization\AuthorizationPolicy" not found in /var/www/html/lib/pkp/classes/security/authorization/ReviewAssignmentFileWritePolicy.php:28 Stack trace: #0 {main} thrown in /var/www/html/lib/pkp/classes/security/authorization/ReviewAssignmentFileWritePolicy.php on line 28