Whats wrong with the Functions and Events in this script?

if playerCount.Changed then 
	connect (Start)
end
function Start()
	game.Workspace.Message:remove()
	connect (loadup)
end
function loadup()
	for loadup1 = 10, 1, -1 do
		startup1 = Instance.new("Hint", Workspace)
		startup1.Text = " Starting in "..loadup1
	 	 wait(1)
		game.Workspace.Message:remove()
	end
end
if playerCount.Changed then --Please Help
	connect (choice)
end
function choice()
	if playerCount == 2 or 3 then-- And this
		connect (Start1)
	end
	function Start1()
	game.ServerScriptService["500m Script"].Disabled = false
	end
	end
if playerCount >= 4 then
	game.ServerScriptService["500m Script"].Disabled = true
    local Map1 = Game.ServerStorage.Map1
	local Map2 = Game.ServerStorage.Map2
	Map = math.random(Number)
	if Map == 1 then
		connect (Map1) 
			function Map1()
				game.ServerScriptService["500m Script"].Disabled = false
			end
	elseif Map == 2 then
		connect (Map2)
	function Map2()
		game.ServerScriptService["1000m Script"].Disabled = false
	end
	end
end