Fatal error: Uncaught Error: Class "PKP\invitation\core\CreateInvitationController" not found in /var/www/html/lib/pkp/classes/invitation/invitations/userRoleAssignment/handlers/api/UserRoleAssignmentCreateController.php:33 Stack trace: #0 {main} thrown in /var/www/html/lib/pkp/classes/invitation/invitations/userRoleAssignment/handlers/api/UserRoleAssignmentCreateController.php on line 33