java.lang.NullPointerException exception in SOAP Receiver adapter

Hi Experts,

I have a requirement where a third party system will call a service(WSDL) generated from ID to receive some details from SAP system.

The design and configuration part everything was created and was able to receive requests from third party system successfully till last week. But suddenly we are receiving the below error from today,

SOAP: call failed: java.lang.NullPointerException: while trying to invoke the method com.sap.aii.af.sdk.xi.mo.xmb.XMBMessageHeader.getMessageId() of an object loaded from local variable messageHeader

i went through some of the threads in SDN, but still we are receiving the same error.

Could any one can help me on this?

Thanks in advance.

Regards,

Govardhan Duvva.