Fatal error: Uncaught Error: Class "WP_REST_Search_Handler" not found in /home/.sites/58/site43/web/wp-includes/rest-api/search/class-wp-rest-post-search-handler.php:15
Stack trace:
#0 {main}
  thrown in /home/.sites/58/site43/web/wp-includes/rest-api/search/class-wp-rest-post-search-handler.php on line 15