Soap UI error

Hi,

i am working on interface Webservice to CRM.

I have all the set up for soap ui it was working last month.But when i try to push the messages from XI to CRM thru soap ui throwing below error.

• Soap response failed (com.eviware.soapui.impl.wsdl.teststeps.assertions.soap.SoapResponseAssertion@6e46d91d )
• null/empty response

But CRM system is fine and when i try to push the message from Webservice client system portal (thirdparty) message reaching CRM and CRM giving response back.

But i am not able to find whats wrong with Soap ui.Please suggest.

Regards,

Narendra