Fatal error: Uncaught Error: Class "Symfony\Component\Serializer\Exception\RuntimeException" not found in /home/itwerx/public_html/vendor/symfony/serializer/Exception/MappingException.php:19
Stack trace:
#0 {main}
thrown in /home/itwerx/public_html/vendor/symfony/serializer/Exception/MappingException.php on line 19