Fatal error: Uncaught Error: Interface "Symfony\Component\Process\Exception\ExceptionInterface" not found in /opt/lampp/htdocs/forum/flarum/vendor/symfony/process/Exception/LogicException.php:19 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/forum/flarum/vendor/symfony/process/Exception/LogicException.php on line 19