Fatal error: Uncaught Error: Class "Metadata\Driver\AbstractFileDriver" not found in /var/www/html/src/vendor/jms/serializer/src/Metadata/Driver/YamlDriver.php:26 Stack trace: #0 {main} thrown in /var/www/html/src/vendor/jms/serializer/src/Metadata/Driver/YamlDriver.php on line 26