How do I fix this chat:connect LocalScript?

local lumos = game.StarterPack.Wand.Handle.ParticlePart.Lumos

game.Players.LocalPlayer.Chatted(function(message)
	if message == "Lumos" then
		lumos.Enabled = true
	end
end)

It is in a LocalScript. What did I mess up?

Make it a normal script inside of ServerScriptService

game.Players.PlayerAdded:Connect(function(plr)
	plr.Chatted:Connect(function(message)
		local lumos = plr:WaitForChild("Backpack").Wand.Handle.ParticlePart.Lumos
   	 if message == "Lumos" then
      	  lumos.Enabled = true
  	  end
end)
end)

you forgot to add :connect inbetween Chatted and (function(message)

Check this out

game.Players.PlayerAdded:connect(function(player)
    plr.Chatted:connect(function(message)
	repeat wait() until player:WaitForChild("Backpack")
        local lumos = player.Backpack.Wand.Handle.ParticlePart.Lumos
     if message == "Lumos" then
          lumos.Enabled = true
      end
end)
end)

If this works, please mark as solved!

As always, keep the good scripting!