Fatal error: Uncaught Error: Interface "Wikimedia\CSS\Objects\DeclarationOrAtRule" not found in /var/www/html/w/vendor/wikimedia/css-sanitizer/src/Objects/Declaration.php:15 Stack trace: #0 {main} thrown in /var/www/html/w/vendor/wikimedia/css-sanitizer/src/Objects/Declaration.php on line 15