Fatal error: Uncaught Error: Interface "fXmlRpc\MulticallBuilderInterface" not found in /home/mydemotec/public_html/windstream/vendor/lstrojny/fxmlrpc/src/fXmlRpc/MulticallBuilder.php:28 Stack trace: #0 {main} thrown in /home/mydemotec/public_html/windstream/vendor/lstrojny/fxmlrpc/src/fXmlRpc/MulticallBuilder.php on line 28