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An unhandled exception of type 'System.ServiceModel.ProtocolException' occurred in mscorlib.dll
Additional information: The content type text/html of the response message does not match the content type of the binding (text/xml; charset=utf-8). If using a custom encoder, be sure that the IsContentTypeSupported method is implemented properly. The first 13 bytes of the response were: '<HTML></HTML>'.