Fatal error: Uncaught Error: Class "WP_Image_Editor" not found in /home/pacs/vcg00/users/compgen.de/wordpress/wp-includes/class-wp-image-editor-imagick.php:16 Stack trace: #0 {main} thrown in /home/pacs/vcg00/users/compgen.de/wordpress/wp-includes/class-wp-image-editor-imagick.php on line 16