生产订单变更单审核报错

Value cannot be null.
Parameter name: source

[{"operation":"PRD_MOChange.MBIClick.tbApproves"}]
发生时间： 16:47:50
错误编号： 91cd2e6c131b4a08af4bc5a55ca58787
错误信息： Value cannot be null.
Parameter name: source
===================================================
调用堆栈：

Server stack trace:
at System.Linq.Enumerable.Select[TSource,TResult](IEnumerable`1 source, Func`2 selector)
at Kingdee.K3.MFG.SFC.App.ServicePlugIn.MOCH.Audit.AfterExecuteOperationTransaction(AfterExecuteOperationTransaction e)
at Kingdee.BOS.App.Core.PlugInProxy.OperationServicePlugInProxy.FireAfterExecuteOperationTransaction(AfterExecuteOperationTransaction e)
at Kingdee.BOS.App.Core.AbstractOprerationService.DoExcete()
at Kingdee.BOS.App.Core.AbstractOprerationService.Excute(Object[] ids)
at Kingdee.BOS.App.Core.AbstractSetStatus.Excute(Object[] ids)
at Kingdee.BOS.App.Core.SetStatusService.SetBillStatus(Context ctx, BusinessInfo businessInfo, List`1 pkEntryIds, List`1 paras, String operationNumber, OperateOption option)

Exception rethrown at [0]:
at Kingdee.BOS.ServiceHelper.BusinessDataServiceHelper.SetBillStatus(Context ctx, BusinessInfo businessInfo, List`1 pkEntryIds, List`1 paras, String operationNumber, OperateOption option)
at Kingdee.BOS.Business.Bill.Operation.AbstractStatusConvert.ExecuteBillOperation(List`1 paras, OperateOption option)
at Kingdee.BOS.Business.Bill.Operation.AbstractStatusConvert.ExecuteStatusConvert(List`1 paras)
at Kingdee.BOS.Business.Bill.Operation.Audit.AuditIdeaPrompt()
at Kingdee.BOS.Core.DynamicForm.AbstractDynamicFormOperation.Operation(CallBackWfAfterOperation callbackwf, IOperationResult result)
at Kingdee.BOS.Core.DynamicForm.AbstractDynamicFormOperation.Execute(InvokeFormOperation4WfParam param, CallBackWfAfterOperation callbackwf)
at Kingdee.BOS.Web.DynamicForm.OperationCaller.InvokeFormOperation(String operationNumber)
at Kingdee.BOS.Business.DynamicForm.BusinessService.ExcuteOperation.DoAction(FormBusinessServiceArgs e)
at Kingdee.BOS.Core.DynamicForm.FormBusinessServiceUtil.InvokeService(IDynamicFormView view, Object source, FormBusinessService service, String activeEntity, DynamicObject activeRow, Int32 rowIndex)
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.DynamicForm.DynamicWebFormView.MainBarItemClick(String barItemKey)
at Kingdee.BOS.Web.DynamicForm.DynamicWebFormController.MainBarItemClick(String itemKey, JSONArray postDatas)