Fatal error: Uncaught Error: Interface "Symfony\Component\Serializer\SerializerInterface" not found in /opt/lampp/htdocs/myhospitalnow/suitecrm/vendor/symfony/serializer/Debug/TraceableSerializer.php:29 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/myhospitalnow/suitecrm/vendor/symfony/serializer/Debug/TraceableSerializer.php on line 29