应付单审核报错请问应该怎么处理

[{"operation":"AP_Payable_List.MBIClick.tbSplitApprove"}]
发生时间： 11:49:21
错误编号： 4989683d2cd34e9a90d6cad8331deb56
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.FIN.AP.App.ServicePlugIn.BillConvert.CancelCrossLevelWhenFinFromHook.AfterCommitAmount(AfterCommitAmountEventArgs e)
at Kingdee.BOS.Core.BusinessFlow.PlugIn.BusinessFlowServicePlugInProxy.FireAfterCommitAmount(AfterCommitAmountEventArgs e)
at Kingdee.BOS.App.Core.BusinessFlow.WriteBackLogicUnit.CommitAmountLogic.DoTaskLast()
at Kingdee.BOS.App.Core.BusinessFlow.WriteBackEngine.WriteToSourceDataEntity()
at Kingdee.BOS.App.Core.BusinessFlow.WriteBackEngine.Do()
at Kingdee.BOS.App.Core.BusinessFlow.BusinessFlowWriteBack.DoWriteBackEachRule(KeyValuePair`2 rule, WriteBackEngineContext engineContext)
at Kingdee.BOS.App.Core.BusinessFlow.BusinessFlowWriteBack.DoWriteBack(Sheets`1 sheets, AED`1 aed)
at Kingdee.BOS.App.Core.BusinessFlow.BusinessFlowTracker`1.WriteDataToDB(BusinessFlowInstanceCollection newInstances, BusinessFlowTrackerCollection trackerRows, Sheets`1 sheets, Sheets`1 snapshot, AED`1 aed)
at Kingdee.BOS.App.Core.BusinessFlow.BusinessFlowTracker`1.Audit(Sheets`1 sheets)
at Kingdee.BOS.App.Core.BusinessFlow.BusinessFlowTrackerApply.Audit(DynamicObject[] dataObjects, String operationNumber)
at Kingdee.BOS.App.Core.AbstractSetStatus.SaveConvertDataAfter(Context ctx, BusinessInfo info, DynamicObject[] objs, List`1 paras, OperateOption option)
at Kingdee.BOS.App.Core.AbstractSetStatus.BeforeInvokeFormBusiness(DynamicObject[] objs)
at Kingdee.BOS.App.Core.AbstractOprerationService.CallOperation(DynamicObject[]& objs)
at Kingdee.BOS.App.Core.AbstractOprerationService.CallOperatinTransaction(DynamicObject[] objs)
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.BatStatusConvert(Int32 loopTimes, Int32 iBat, Object[] ids, List`1 paras)
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.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)