SOAP AXIS RECEIVER ERROR

Hi Guys,

i could not found any entries about folowing error message. Can anyone asist me?

com.sap.engine.interfaces.messaging.api.exception.MessagingException: The WSDL could not be parced; nested exception is: The WSDL could not be obtained; nested exception is: The WSDL could not be obtained:partner server returned:HTTP/1.1 500 Internal Server Error

Thank you,

PM