生产订单删除报错

[{"operation":"PRD_MO_List.AfterConfirm"}]
发生时间： 16:06:58
错误编号： 6242e28043894a239d4659f095218233
错误信息： Object reference not set to an instance of an object.
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调用堆栈：
Server stack trace:
at Kingdee.K3.MFG.PRD.App.ServicePlugIn.MO.Validator.DeleteEntryValidator.Validate(ExtendedDataEntity[] dataEntities, ValidateContext validateContext, Context ctx)
at Kingdee.BOS.App.Core.Validation.ValidationService.Validate(IEnumerable`1 dataEntities, ValidateContext validateContext, AbstractValidator[] validators)
at Kingdee.BOS.App.Core.Validation.ValidationService.TryValidate(IEnumerable`1 dataEntities, ValidateContext validateContext, List`1& errorInfo)
at Kingdee.BOS.App.Core.AbstractOprerationService.TryValidate()
at Kingdee.BOS.App.Core.AbstractOprerationService.Validate()
at Kingdee.BOS.App.Core.AbstractOprerationService.DoExcete()
at Kingdee.BOS.App.Core.AbstractOprerationService.Excute(Object[] ids)
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.IDeleteService.Delete(Context ctx, BusinessInfo info, Object[] Ids, OperateOption option, String operationNumber)
at Kingdee.BOS.ServiceHelper.BusinessDataServiceHelper.Delete(Context ctx, BusinessInfo businessInfo, Object[] Ids, OperateOption option, String operationNumber)
at Kingdee.BOS.Business.Bill.Operation.Delete.BatDelete(Int32 loopTimes, Int32 iBat, String[] _idList, IOperationResult fullResult)
at Kingdee.BOS.Business.Bill.Operation.Delete.DoListDelete(IOperationResult fullResult)
at Kingdee.BOS.Business.Bill.Operation.Delete.ExecuteOperation()
at Kingdee.BOS.Core.DynamicForm.AbstractDynamicFormOperation.Operation(CallBackWfAfterOperation callbackwf, IOperationResult result)
at Kingdee.BOS.Core.DynamicForm.AbstractDynamicFormOperation.<>c__DisplayClass2b.b__23(MessageBoxResult result)
at Kingdee.BOS.Web.DynamicForm.DynamicWebFormView.AfterConfirm(String id, Int32 returnOption)
at Kingdee.BOS.Web.DynamicForm.DynamicWebFormController.AfterConfirm(String id, Int32 returnOption)