Fatal error: Uncaught Error: Class "Metadata\Driver\AbstractFileDriver" not found in /home/activeexcavators/public_html/vendor copy/jms/serializer/src/Metadata/Driver/XmlDriver.php:23 Stack trace: #0 {main} thrown in /home/activeexcavators/public_html/vendor copy/jms/serializer/src/Metadata/Driver/XmlDriver.php on line 23