HIS - Encountered an Exception

HIS - Encountered an Exception

Application: BizBox Hospital Information System 8.0
Version: 8.26.15.5
=============== EXCEPTION =================
Type: System.NullReferenceException
Message: Object reference not set to an instance of an object.
Source: BizBox Hospital Information System 8.0
Stack Trace:    at BizBox.HospitalInformationSystem.CoreComponents.SubComponents.frmPatRegARTransferHBTag.get_VwItemsandServicesChargesTable()
   at BizBox.HospitalInformationSystem.CoreComponents.SubComponents.frmPatRegARTransferHBTag._formItemServicesDataWorker_RunWorkerCompleted(Object sender, RunWorkerCompletedEventArgs e)
   at System.ComponentModel.BackgroundWorker.OnRunWorkerCompleted(RunWorkerCompletedEventArgs e)
   at System.ComponentModel.BackgroundWorker.AsyncOperationCompleted(Object arg)