I found a part of a Script in a Part, but this Part of the Script won't work. I want to make it so I (The owner of the Group) gets a Tray when you click on the Button, but it won't work. Any suggestions?

script.Parent.ClickDetector.MouseClick:connect(function(player)
	if player:GetRankInGroup(990319) == 255 then
		if script.Parent.Parent.Mugs.M8.Transparency == 0 then
			MugsInvis()
			y = player.BackPack
			z = game.Lighting.Tray
			z:Clone().Parent = y
			player.Character.Humanoid:EquipTool(z)	
		end
	end
end)