Steering Display Error

[17:43:04] [ERROR] Caught fatal unhandled exception:
System.NullReferenceException: Object reference not set to an instance of an object.
   at EnumeratorMods_Steering_Display.Enumerator.steering_block()
   at EnumeratorMods_Steering_Display.Enumerator.Enumerator_Tick(Object sender, EventArgs e)
   at GTA.Script.MainLoop()