Error when hitting PI runtime cache - Value Mapping Replication

Hi,

Below is the error

Delivery of the message to the application using connection JPR failed, due to: com.sap.engine.interfaces.messaging.api.exception.MessagingException: Error processing inbound message. FaultException: com.sap.aii.proxy.xiruntime.core.ESPXISystemFaultException: Error encountered during processing of XI request message in inbound ESP; Hint: com.sap.engine.interfaces.webservices.runtime.RuntimeProcessException: Unexpected uriID '/{http://sap.com/xi/XI/System}ValueMappingReplication'. Found: BindingData 'null', interfaceMapping 'null' interfaceDefinition 'null'

.................. working on ValueMappingReplication .. where am i going wrong?

below is the URL I am hitting PI server with from SOAP UI (the above error is in Message Monitor):-

http://host:port/XISOAPAdapter/MessageServlet?senderParty=&senderService=BC_ValueMappingRep&receiverParty=&receiverService=&interface=ValueMappingReplicationOut&interfaceNamespace=http://sap.com/xi/XI/System