Fatal error: Uncaught Error: Class 'WP_Customize_Section' not found in /home/daniydki/public_html/wp-includes_/customize/class-wp-customize-sidebar-section.php:17 Stack trace: #0 {main} thrown in /home/daniydki/public_html/wp-includes_/customize/class-wp-customize-sidebar-section.php on line 17