Fatal error: Uncaught Error: Interface "fXmlRpc\Serializer\SerializerInterface" not found in /home/mydemotec/public_html/windstream/vendor/lstrojny/fxmlrpc/src/fXmlRpc/Serializer/XmlWriterSerializer.php:34 Stack trace: #0 {main} thrown in /home/mydemotec/public_html/windstream/vendor/lstrojny/fxmlrpc/src/fXmlRpc/Serializer/XmlWriterSerializer.php on line 34