Fatal error: Uncaught Error: Class "Symfony\Component\HttpFoundation\StreamedResponse" not found in /home/zdpktgd/ptc/vendor.old/symfony/http-foundation/StreamedJsonResponse.php:45 Stack trace: #0 {main} thrown in /home/zdpktgd/ptc/vendor.old/symfony/http-foundation/StreamedJsonResponse.php on line 45