Fatal error: Uncaught Error: Class "PKP\linkAction\request\ConfirmationModal" not found in /var/www/html/lib/pkp/classes/linkAction/request/RemoteActionConfirmationModal.php:18 Stack trace: #0 {main} thrown in /var/www/html/lib/pkp/classes/linkAction/request/RemoteActionConfirmationModal.php on line 18