RfcClientException: functiontemplate from repository was <null>

Hi

I am doing a BPM scenario in which I am using Async-Sync-Async bridge.

In this we are taking daat from a .txt file and in BPM at Send step we are using RFC to send message to a R3 synchronously.

But when our scenario is executing in <b>SXMB_MONI</b> it is showing success message flag with message but it's status at outbound in 'Error' on PE.

I am getting following error in Xml message for response message.

<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>

- <!-- Call Adapter

-->

- http://sap.com/xi/XI/Message/30" xmlns:SOAP=" http://schemas.xmlsoap.org/soap/envelope/" SOAP:mustUnderstand="1">

<SAP:Category>XIAdapterFramework</SAP:Category>

<SAP:Code area="MESSAGE">GENERAL</SAP:Code>

<SAP:P1 />

<SAP:P2 />

<SAP:P3 />

<SAP:P4 />

<SAP:AdditionalText>com.sap.aii.af.ra.ms.api.DeliveryException: error while processing message to remote system:com.sap.aii.af.rfc.core.client.RfcClientException: functiontemplate from repository was <null></SAP:AdditionalText>

<SAP:ApplicationFaultMessage namespace="" />

<SAP:Stack />

<SAP:Retry>M</SAP:Retry>

</SAP:Error>

What does this error mean ?

Where is the problem in this case?

And how to solve it?

Its urgent

Thanks in advance.

Regards

Sami