Since the abnormal end (abend) occurred in the target program, it's probable your SOAP request was well-formed and conforms to the WSDL to some extent. If this is a CICS web service you're communicating with, it may be that validation is turned off (it usually is in a production environment per IBM recommendation) so you may have passed data the target program regards as invalid in your request. It's also possible there's a bug in the target program.
In any case, you likely want to talk to the person responsible for the target program and the two of you can collaborate on a solution.