Fatal error: Uncaught Error: Interface "Symfony\Component\Serializer\Normalizer\NormalizerInterface" not found in C:\xampp\htdocs\retrodex\helpdesk\vendor\symfony\serializer\Normalizer\MimeMessageNormalizer.php:31 Stack trace: #0 {main} thrown in C:\xampp\htdocs\retrodex\helpdesk\vendor\symfony\serializer\Normalizer\MimeMessageNormalizer.php on line 31