Fatal error: Uncaught Error: Class "Smush\Core\Helper" not found in /users/laufgruppe-lvb/www/wordpress/wp-content/plugins/wp-smushit/app/modals/deactivation-survey.php:6 Stack trace: #0 {main} thrown in /users/laufgruppe-lvb/www/wordpress/wp-content/plugins/wp-smushit/app/modals/deactivation-survey.php on line 6