Fatal error: Uncaught Error: Class "WP_Widget_Media" not found in /home/.sites/58/site43/web/wp-includes/widgets/class-wp-widget-media-gallery.php:17
Stack trace:
#0 {main}
  thrown in /home/.sites/58/site43/web/wp-includes/widgets/class-wp-widget-media-gallery.php on line 17