Fatal error: Uncaught Error: Class "PKP\linkAction\request\ConfirmationModal" not found in C:\xampp\htdocs\ojs\lib\pkp\classes\linkAction\request\JsEventConfirmationModal.php:20 Stack trace: #0 {main} thrown in C:\xampp\htdocs\ojs\lib\pkp\classes\linkAction\request\JsEventConfirmationModal.php on line 20