Android Question Showcustomtoast java.lang.RuntimeException

Sub rewad_Rewarded (Item As Object)  
    Dim cs As CSBuilder
     
    cs.Initialize.Alignment("ALIGN_CENTER").RelativeSize(30dip).Typeface(Typeface.SANS_SERIF).bold.Color(Colors.White).Size(18).Append(Starter.loc.Localize("Has sido recompensado, podrás enviar hasta ")).Pop.Pop
   
    cs.bold.Color(Colors.Red).Size(25).Append(contador_publicidad).Pop.Pop.Pop
    cs.Color(Colors.White).Size(18).Append( Starter.loc.Localize(" traducciones , recuerda que siempre tienes la opción de  ")).Pop
    cs.Color(Colors.White).Size(20).Append(Starter.loc.Localize("suscribirte")).Pop
    cs.Color(Colors.White).Size(18).Append( "  a  ").Append(CRLF). Pop
   
    cs.bold.Color(Colors.White).Size(27).Append("app").popall
   
    ShowCustomToast(cs, True, Colors.RGB(25,208,35))
   
   
End Sub



Sub ShowCustomToast(Text As Object, LongDuration As Boolean, BackgroundColor As Int)

   Dim ctxt As JavaObject
   ctxt.InitializeContext
   Dim duration As Int
   If LongDuration Then duration = 1 Else duration = 0
   Dim toast As JavaObject
   toast = toast.InitializeStatic("android.widget.Toast").RunMethod("makeText", Array(ctxt, Text, duration))
   Dim v As View = toast.RunMethod("getView", Null)
   Dim cd As ColorDrawable
   cd.Initialize(BackgroundColor, 20dip)
   v.Background = cd
   toast.RunMethod("show", Null)
End Sub