Fatal error: Uncaught Error: Class "WP_Widget" not found in /home/teacherc/public_html/blog/home/wp-content/upgrade/wordpress-6.3.2-partial-0/wordpress/wp-includes/widgets/class-wp-widget-rss.php:17 Stack trace: #0 {main} thrown in /home/teacherc/public_html/blog/home/wp-content/upgrade/wordpress-6.3.2-partial-0/wordpress/wp-includes/widgets/class-wp-widget-rss.php on line 17