Fatal error: Uncaught Error: Class "Symfony\Component\HttpFoundation\RedirectResponse" not found in /srv/disk1/2895578/www/whittonphotographicclub.org.uk/concrete/src/Routing/RedirectResponse.php:6 Stack trace: #0 {main} thrown in /srv/disk1/2895578/www/whittonphotographicclub.org.uk/concrete/src/Routing/RedirectResponse.php on line 6