采购入库单 新增返回数据报错

在采购入库单新增-选单-返回数据，报这个提示Object reference not set to an instance of an object.{"operation":"PUR_ReceiveBill_List.MBIClick.tbReturn"}]
发生时间：11:44:05
错误来源： mscorlib
错误信息：Object reference not set to an instance of an object.
===================================================
调用堆栈：
Server stack trace:
at Kingdee.K3.SCM.App.Pur.ServicePlugIn.PurReceiveToInStockService.GetIsAllowUnQuelifiedInstock(DynamicObject item)
at Kingdee.K3.SCM.App.Pur.ServicePlugIn.PurReceiveToInStockService.GetCtypeReceviveDatas(DynamicObjectCollection sourceEntrys)
at Kingdee.K3.SCM.App.Pur.ServicePlugIn.PurReceiveToInStockService.OnGetDrawSourceData(GetDrawSourceDataEventArgs e)
at Kingdee.BOS.Core.Metadata.ConvertElement.PlugIn.ConvertPlugInProxy.FireOnGetDrawSourceData(GetDrawSourceDataEventArgs e)
at Kingdee.BOS.App.Core.Convertible.DefaultPolicyDraw.GetDrawSourceDataAction.Do()
at Kingdee.BOS.Core.BusinessPolicyModel.BusinessPolicyEngine.Do(OperateOption context)
at Kingdee.BOS.App.Core.Convertible.ConvertEngine.OnDrawing(DrawArgs drawArgs, OperateOption option)
at Kingdee.BOS.App.Core.ConvertService.Draw(Context ctx, DrawArgs drawArgs, OperateOption option)
Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
at Kingdee.BOS.Contracts.IConvertService.Draw(Context ctx, DrawArgs serviceArgs, OperateOption option)
at Kingdee.BOS.ServiceHelper.ConvertServiceHelper.Draw(Context ctx, DrawArgs drawArgs, OperateOption option)
at Kingdee.BOS.Business.Bill.Utils.CommonUtils.RunDraw(IDynamicFormView view, OpFormReturnInfo retInfo, FormResult result, ConvertRuleElement rule, String conventFilter, OperateOption option)
at Kingdee.BOS.Business.Bill.Utils.CommonUtils.<>c__DisplayClass12.b__d(FormResult res)
at Kingdee.BOS.Web.DynamicForm.DynamicWebFormView.DoCallBackAction(Object returnData, Action`1 action)
at Kingdee.BOS.Web.DynamicForm.DynamicWebFormView.FormClosedCallBack(String id, Boolean isSyncCall)
at Kingdee.BOS.Web.DynamicForm.AbstractDynamicWebFormView.CloseWindow()
at Kingdee.BOS.Web.DynamicForm.AbstractDynamicWebFormView.OnClose()
at Kingdee.BOS.Web.List.ListView.OnClose()
at Kingdee.BOS.Business.Bill.Operation.ReturnData.ExecuteOperation()
at Kingdee.BOS.Core.DynamicForm.AbstractFormOperation.Execute(InvokeFormOperation4WfParam param, CallBackWfAfterOperation callbackwf)
at Kingdee.BOS.Web.DynamicForm.AbstractDynamicWebFormView.InvokeFormOperation(String operationNumber)
at Kingdee.BOS.Business.DynamicForm.BusinessService.ExcuteOperation.DoAction(FormBusinessServiceArgs e)
at Kingdee.BOS.Core.DynamicForm.FormBusinessServiceUtil.InvokeServices(IDynamicFormView view, Object source, IEnumerable`1 services, Int32 actionType, String activeEntity, DynamicObject activeRow, Int32 rowIndex)
at Kingdee.BOS.Web.DynamicForm.BusinessServiceCaller.InvokeFormBusiness(IDynamicFormView view, Object source, List`1 formBusinessServices, Int32 actionType, String entityKey, Int32 row)
at Kingdee.BOS.Web.DynamicForm.DynamicWebFormView.BarItemClick(String parentKey, String barItemKey, BarDataManager bar, Int32 bartype)
at Kingdee.BOS.Web.List.ListView.MainBarItemClick(String barItemKey)
at Kingdee.BOS.Web.DynamicForm.DynamicWebFormController.MainBarItemClick(String itemKey, JSONArray postDatas)
错误数据： System.Collections.ListDictionaryInternal