Fatal error: Uncaught Symfony\Component\HttpFoundation\Exception\SuspiciousOperationException: Untrusted Host "localhost". in /opt/kimai/vendor/symfony/http-foundation/Request.php:1191 Stack trace: #0 /opt/kimai/vendor/symfony/http-kernel/EventListener/ValidateRequestListener.php(41): Symfony\Component\HttpFoundation\Request->getHost() #1 /opt/kimai/vendor/symfony/event-dispatcher/EventDispatcher.php(298): Symfony\Component\HttpKernel\EventListener\ValidateRequestListener->onKernelRequest(Object(Symfony\Component\HttpKernel\Event\RequestEvent), 'kernel.request', Object(Symfony\Component\EventDispatcher\EventDispatcher)) #2 /opt/kimai/vendor/symfony/event-dispatcher/EventDispatcher.php(260): Symfony\Component\EventDispatcher\EventDispatcher::Symfony\Component\EventDispatcher\{closure}(Object(Symfony\Component\HttpKernel\Event\RequestEvent), 'kernel.request', Object(Symfony\Component\EventDispatcher\EventDispatcher)) #3 /opt/kimai/vendor/symfony/event-dispatcher/EventDispatcher.php(235): Symfony\Component\EventDispatcher\Ev in /opt/kimai/vendor/friendsofsymfony/rest-bundle/View/ViewHandler.php on line 366