Fatal error: Uncaught Error: Class "RemexHtml\Serializer\HtmlFormatter" not found in /var/www/html/orian-wiki/vendor/wikimedia/remex-html/RemexHtml/Serializer/DepurateFormatter.php:16 Stack trace: #0 {main} thrown in /var/www/html/orian-wiki/vendor/wikimedia/remex-html/RemexHtml/Serializer/DepurateFormatter.php on line 16