Fatal error: Uncaught Error: Interface "Laminas\HttpHandlerRunner\Exception\ExceptionInterface" not found in /opt/lampp/htdocs/forum/flarum/vendor/laminas/laminas-httphandlerrunner/src/Exception/InvalidEmitterException.php:13 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/forum/flarum/vendor/laminas/laminas-httphandlerrunner/src/Exception/InvalidEmitterException.php on line 13