Fatal error: Uncaught Error: Interface "Symfony\Component\String\Inflector\InflectorInterface" not found in /opt/lampp/htdocs/forum/flarum/vendor/symfony/string/Inflector/FrenchInflector.php:19 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/forum/flarum/vendor/symfony/string/Inflector/FrenchInflector.php on line 19