Fatal error: Uncaught Error: Class "Metadata\MergeableClassMetadata" not found in /home/teranbyt/public_html/invoice/vendor/jms/security-extra-bundle/JMS/SecurityExtraBundle/Metadata/ClassMetadata.php:32 Stack trace: #0 {main} thrown in /home/teranbyt/public_html/invoice/vendor/jms/security-extra-bundle/JMS/SecurityExtraBundle/Metadata/ClassMetadata.php on line 32