why wont the GUI image change. Did i use rbxassetid wrong?

function pause()
	if workspace.MusicScript.S1.Playing == true then
		game.Workspace.MusicScript.S1.Playing = false
		script.Parent.Image = rbxassetid://(12255380)
	end
end
script.Parent.MouseButton1Click:Connect(pause)

i used

rbxassetid

function pause()
    if workspace.MusicScript.S1.Playing == true then
        game.Workspace.MusicScript.S1.Playing = false
        script.Parent.Image = 'rbxassetid://12255380'
    end
end
script.Parent.MouseButton1Click:Connect(pause)

This will work.

Also, Dovydas1118, you are acting really immature right now. Spamming instead of helping, especially since this is really easy, shows how much of a retard you are.