How to fix touched event not firing????

so i want make a part if it touched a gui appears and i want to make so if a part touched the part transparency set to 0 but it didn't work

the Gui appears local script :

script.Parent.Touched:Connect(function(hit)
	local char = hit.Parent
	if char then
		local player = game.Players:GetPlayerFromCharacter(char)
		if player then
			script.Parent.ROBUX:Play()
			local Endings = player.StarterGui:WaitForChild("Endings")
			Endings:WaitForChild("RobuxEnding").Visible = true
			wait(1)
			Endings:WaitForChild("RobuxEnding").TextButton.Visible = true
		end
	end
end)

the transparency local script :

script.Parent.Touched:Connect(function(hit)
	local char = hit.Parent
	if char then
		script.Parent.Transparency = 0
	end
end)