Fatal error: Uncaught Error: Class "Metadata\ClassMetadata" not found in /home/kiwakim/stock/vendor/jms/metadata/src/Metadata/MergeableClassMetadata.php:5 Stack trace: #0 {main} thrown in /home/kiwakim/stock/vendor/jms/metadata/src/Metadata/MergeableClassMetadata.php on line 5