Fatal error: Uncaught Error: Class "PKP\form\Form" not found in C:\xampp\htdocs\ojs\lib\pkp\controllers\informationCenter\form\NewNoteForm.php:25 Stack trace: #0 {main} thrown in C:\xampp\htdocs\ojs\lib\pkp\controllers\informationCenter\form\NewNoteForm.php on line 25