Fatal error: Uncaught Error: Interface 'Symfony\Component\Serializer\Normalizer\NormalizerInterface' not found in /home/itscm/dev.its.cm/webservices/vendor/symfony/serializer/Normalizer/ProblemNormalizer.php:24 Stack trace: #0 {main} thrown in /home/itscm/dev.its.cm/webservices/vendor/symfony/serializer/Normalizer/ProblemNormalizer.php on line 24