Fatal error: Uncaught Error: Class "WP_Customize_Control" not found in /home/rcaswrte/public_html/wp-includes/customize/class-wp-sidebar-block-editor-control.php:18
Stack trace:
#0 {main}
thrown in /home/rcaswrte/public_html/wp-includes/customize/class-wp-sidebar-block-editor-control.php on line 18