PHP:
Fatal error: Uncaught Error: Class "WP_Image_Editor" not found in /www/habi.gna.ch/doc/wp-includes/class-wp-image-editor-imagick.php:16
Stack trace:
#0 {main}
thrown in /www/habi.gna.ch/doc/wp-includes/class-wp-image-editor-imagick.php on line 16