Fatal error: Uncaught Error: Call to undefined function add_action() in /www/wwwroot/wczhuti/wp-content/plugins/wp-super-cache/inc/delete-cache-button.php:41 Stack trace: #0 {main} thrown in /www/wwwroot/wczhuti/wp-content/plugins/wp-super-cache/inc/delete-cache-button.php on line 41