Fatal error: Uncaught Error: Interface 'Symfony\Component\Serializer\Encoder\DecoderInterface' not found in /home/itscm/dev.its.cm/webservices/vendor/symfony/serializer/Encoder/JsonDecode.php:21 Stack trace: #0 {main} thrown in /home/itscm/dev.its.cm/webservices/vendor/symfony/serializer/Encoder/JsonDecode.php on line 21