Fatal error: Uncaught Error: Class "Smush\Core\Controller" not found in /users/laufgruppe-lvb/www/wordpress/wp-content/plugins/wp-smushit/core/media-library/class-media-library-slice-data-fetcher.php:10 Stack trace: #0 {main} thrown in /users/laufgruppe-lvb/www/wordpress/wp-content/plugins/wp-smushit/core/media-library/class-media-library-slice-data-fetcher.php on line 10