Fatal error: Uncaught Error: Class 'WP_Customize_Setting' not found in C:\xampp\htdocs\aszhi\wp-includes\customize\class-wp-customize-nav-menu-item-setting.php:20 Stack trace: #0 {main} thrown in C:\xampp\htdocs\aszhi\wp-includes\customize\class-wp-customize-nav-menu-item-setting.php on line 20