Fatal error: Uncaught Error: Class 'Symfony\Component\HttpFoundation\Exception\UnexpectedValueException' not found in /home2/cp805728/public_html/treasurestar.ssewebapp.net/vendor/symfony/http-foundation/Exception/ConflictingHeadersException.php:19 Stack trace: #0 {main} thrown in /home2/cp805728/public_html/treasurestar.ssewebapp.net/vendor/symfony/http-foundation/Exception/ConflictingHeadersException.php on line 19