Could anyone help me with a Spectate Script? (its a local script)

So i am making a spectator script where i have made it so if the player is in the lobby the InLobby value in there player is ticked and when you go into the map it unticks which works but i want me spectator script to display the players name if they are inside the map and hide it if they are in the lobby

Almost all of the code works the only bit i am struggling with is the InLobby.Changed:connect(function() which isn't working

This is a local script

this is the code i attempted:

local frame = script.Parent

local open = frame.Parent.Open

local close = frame.Parent.Close

local specLabel = frame.Parent.SpecLabel

local player = game.Players.LocalPlayer

local plr = game.Players:GetPlayers()

frame.Visible = false

close.Visible = false

specLabel.Visible = false


plr:FindFirstChild("InLobby").Changed:connect(function()
		if plr:FindFirstChild("InLobby").Value == false then

			if plr.Name ~= player.Name then


				local name = Instance.new('TextButton')

				name.Parent = frame

				name.Text = plr.Name

				name.TextScaled = true
			end
		end
end)


local function spec()

	frame.Visible = not frame.Visible



	for _, button in pairs(frame:GetChildren()) do

		if button:IsA('TextButton') then

			button:Destroy()

		end

	end
end



	for _, plr in pairs(game.Players:GetChildren()) do
			if plr:FindFirstChild("InLobby").Value == false then
			if plr.Name ~= player.Name then
				

				local name = Instance.new('TextButton')

				name.Parent = frame

				name.Text = plr.Name

			name.TextScaled = true
			
				name.MouseButton1Click:Connect(function()

					local person = game.Players:FindFirstChild(name.Text)
					
					if person:FindFirstChild("InLobby").Value == false then

					game.Workspace.CurrentCamera.CameraSubject = person.Character

					specLabel.Visible = true

					specLabel.Text = 'Spectating '..name.Text

					frame.Visible = false

						close.Visible = true
					else
						game.Workspace.CurrentCamera.CameraSubject = player.Character

						specLabel.Visible = false

						close.Visible = false
						end
					end)
				end
	end
end
close.MouseButton1Click:Connect(function()

	game.Workspace.CurrentCamera.CameraSubject = player.Character

	specLabel.Visible = false

	close.Visible = false

end)


open.MouseButton1Click:Connect(spec)