Fatal error: Uncaught Error: Interface "Wikimedia\RemexHtml\TreeBuilder\TreeHandler" not found in /var/www/html/orian-wiki/includes/tidy/RemexCompatMunger.php:17
Stack trace:
#0 {main}
thrown in /var/www/html/orian-wiki/includes/tidy/RemexCompatMunger.php on line 17