Missing required parameter 'document' ----

I have created an WSDL, and made a custom process to read SOAP messages.

I made a simple flow that reads the SOAP message, and writes down the values on my desktop as an xlm file. I always get the following error
Missing required parameter ‘document’
This occurs when I use the following service


I know that you get this error when the doc is empty.
But when I use save and restore pipeline, i see that the docs are’nt empty.

Can anyone help me on this issue.

Thanks in advance,

I think you droped user parameters check it once