Fatal error: Uncaught Error: Class "WP_Customize_Control" not found in /usr/www/east110006/heizemod.us/heizemod/wp-content/themes/twentytwentyone/classes/class-twenty-twenty-one-customize-notice-control.php:17 Stack trace: #0 {main} thrown in /usr/www/east110006/heizemod.us/heizemod/wp-content/themes/twentytwentyone/classes/class-twenty-twenty-one-customize-notice-control.php on line 17