FileNotFoundException
   於 System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
   於 System.IO.Directory.InternalCreateDirectory(String fullPath, String path, Object dirSecurityObj, Boolean checkHost)
   於 System.IO.Directory.InternalCreateDirectoryHelper(String path, Boolean checkHost)
   於 ActionPanelControl.Utilities.Data.BackupManager.BackupData(String data, String fileName, String ext)
   於 ActionPanelControl.Domain.AppState.Backup()
   於 System.Windows.Threading.DispatcherTimer.FireTick(Object unused)
   於 System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   於 System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)