Fatal error: Uncaught Error: Class "WP_Widget_Media" not found in D:\XAMPP\htdocs\UTeM\penerbit\wp-includes\widgets\class-wp-widget-media-gallery.php:18 Stack trace: #0 {main} thrown in D:\XAMPP\htdocs\UTeM\penerbit\wp-includes\widgets\class-wp-widget-media-gallery.php on line 18