Fatal error: Uncaught Error: Class 'WP_Widget' not found in /home/ozbarhaber/public_html/19052025___siteeee/wp-admin/user/widgets/class-wp-widget-calendar.php:17 Stack trace: #0 {main} thrown in /home/ozbarhaber/public_html/19052025___siteeee/wp-admin/user/widgets/class-wp-widget-calendar.php on line 17