Fatal error: Uncaught Error: Class 'WP_REST_Controller' not found in /home/.sites/880/site6390509/web/borg/wp-includes/rest-api/endpoints/class-wp-rest-sidebars-controller.php:19
Stack trace:
#0 {main}
  thrown in /home/.sites/880/site6390509/web/borg/wp-includes/rest-api/endpoints/class-wp-rest-sidebars-controller.php on line 19