Failed in Message Mapping for Sender SOAP Adapter

I am using a synchronous Sender SOAP adapter for sending SOAP messages using HTTP security protocol. I am trying to send SOAP messages to XI and then to RFC-R/3. And Responses back from RFC to XI and then to SOAP. I am getting an error for failed in message mapping in SXMB_MONI for converting SOAP messages to RFC. When I debug it in Message Mapping in Integration Repository, it works fine.

Any help is appreciated.

Thanks in advance!

Mrudula