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