Why won't this click script work?

In this script I'm trying to have a brick clicked and change color, but on output it said that Spotlight is not a valid member of Part

local isOn = false
local talk = script.Parent.talk
function on()
	isOn = true	
	talk.Value = true
end

function off()
	isOn = false	
	talk.Value = false
end

function onClicked()
 
 if isOn == true then off() else on() end

end

script.Parent.ClickDetector.MouseClick:connect(onClicked)
local Spotlight = script.Parent.SpotLight
if isOn == true then Spotlight.Color = 255,58,24
end
if isOn == true then Spotlight.Color = 0,0,255
end

This is what the Part looks like

Part ClickDirector Script Spotlight talk