Fatal error: Uncaught Error: Class 'WP_Customize_Control' not found in /home/wmichal67/public_html/lekcjatest-1v-mw/wp-includes/customize/class-wp-customize-nav-menu-location-control.php:19 Stack trace: #0 {main} thrown in /home/wmichal67/public_html/lekcjatest-1v-mw/wp-includes/customize/class-wp-customize-nav-menu-location-control.php on line 19