Fatal error: Uncaught Error: Class 'WP_Widget' not found in /home/bitpccom/public_html/old_wp/wp-includes/widgets/class-wp-widget-recent-posts.php:17
Stack trace:
#0 {main}
  thrown in /home/bitpccom/public_html/old_wp/wp-includes/widgets/class-wp-widget-recent-posts.php on line 17