Fatal error: Uncaught Error: Class "WP_Widget_Media" not found in /usr/home/AriesPB/domains/elektrobud-koszalin.pl/public_html/wp-includes/widgets/class-wp-widget-media-gallery.php:18
Stack trace:
#0 {main}
  thrown in /usr/home/AriesPB/domains/elektrobud-koszalin.pl/public_html/wp-includes/widgets/class-wp-widget-media-gallery.php on line 18