web api保持组织时，数据已经insert表中，可是返回信息失败

执行返回信息：{"Result":{"ResponseStatus":{"ErrorCode":500,"IsSuccess":false,"Errors":[{"FieldName":"AbstractInteractionResult","Message":"AbstractInteractionResult.InteractionContext is null"}]},"Id":""}}

虽然数据保存成功了，可是返回信息失败，对我判断执行是否成功有影响，请大师帮忙看看。谢谢

执行代码：

string serviceName = "Kingdee.BOS.WebApi.ServicesStub.DynamicFormService.Save";

object[] saveInfo = new object[] { "ORG_Organizations",
"{"Creator":"ch","NeedUpDateFields":[],"Model":{"FOrgID":0,"FNumber":"108","FName":"苏州软件公司Test2","FOrgFormID":"102","FContact":"","FTel":"","FPostCode":"","FADDRESS":"String","FDescription":"测试使用新增组织108","FIsAccountOrg":true,"FModifierId":{"FUserID":0,"FUserAccount":"16394","FName":"修改者"},"FCreatorId":{"FUserID":0,"FUserAccount":"16394","FName":"创建者"},"FCreateDate":"2016/3/9 14:50:33","FModifyDate":"2016-3-4","FFORBIDORID":{"FUserID":0,"FUserAccount":"0","FName":""},"FForbidDate":"","FAUDITDATE":"2016-3-4","FAUDITORID":{"FUserID":0,"FUserAccount":"String","FName":""},"FIsBusinessOrg":false,"FSaleBox":false,"FPurchaseBox":false,"FStockBox":false,"FFactoryBox":false,"FReceiptAndPayBox":false,"FQualityBox":false,"FCapitalBox":false,"FHRBox":false,"FClearingBox":false,"FAssetBox":false,"FParentID":{"FOrgID":0,"FNumber":"","FName":"上级组织"},"FForbidStatus":"A","FDocumentStatus":"C","FOrgFunctions":"1","FMarketing":false,"FService":false,"FAcctOrgType":"1"}}")

var retSave = client.Execute(serviceName, saveInfo);