Fatal error
: Uncaught Error: Class "OOUI\Tag" not found in /var/www/html/orian-wiki/vendor/oojs/oojs-ui/php/Element.php:10 Stack trace: #0 {main} thrown in
/var/www/html/orian-wiki/vendor/oojs/oojs-ui/php/Element.php
on line
10