WebService error in Sync And Save

You may get the following error in Sync And Save.  This indicates an internal error in the DoForms web service.  If you continue to receive this error, please report it to DoForms support.

DFRequest GetSubmissionResponse: WebserviceID: XXXX
RecordID: XXXX
Client found response content type of 'text/plain; charset=iso-8859-1', but expected 'text/xml'.
The request failed with the error message:
--
WebService error:

java.lang.NullPointerException
at org.vnetcon.xml.ws.servlet.request.RequestHandler.doNativeMethodCall(RequestHandler.java:145)
at org.vnetcon.xml.ws.servlet.request.RequestHandler.execute(RequestHandler.java:129)
at org.vnetcon.xml.ws.servlet.WebServiceServlet.doPost(WebServiceServlet.java:212)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166)
at com.google.apphosting.utils.servlet.ParseBlobUploadFilter.doFilter(ParseBlobUploadFilter.java:102)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionFilter.java:35)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
at org.mortbay.jetty

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