Why doesnt this work? Gamescript not working at all.

My game script doesnt work at all. It looks like everything should be all good but when i test it it doesnt even do anything.

-- Made by Bennymax3333

local timeleft = workspace:findFirstChild('timeleft')
local currentMap = workspace:findFirstChild('currentMap')
local _Teams = game:GetService'Teams'
local _Players = game:GetService'Players'


function countDown()
    spawn(function()
        for i = 120, 0, -1 do
            wait(1)
            timeleft.Value = i
        end
    end)
end

function gameStart()
    local players = _Players:GetPlayers()
    for i = 1, #players do
        local stats = players[i].PlayerGui.fullGui.everything.gamePlay.informer
        spawn(function() 
            stats.Text = 'New round beginning!'
            stats.FontSize = 'Size24'
            timeleft.Value = 120
            wait(1)
            stats.Text = ''
        end)
    end
end

local function splitPlayers()
    _Teams.Lobby:Destroy()
    local UseSecondTeam = false
    for i, v in ipairs(_Players:GetPlayers()) do
        if UseSecondTeam then
            v.TeamColor = _Teams["Cops"].TeamColor
        else
            v.TeamColor = _Teams["Criminals"].TeamColor
        end
        UseSecondTeam = not UseSecondTeam
    end
end

function createTeams()
    local Cops = Instance.new("Team", _Teams)
    Cops.TeamColor = BrickColor.new("Bright blue") -- Note that TeamColor is a BrickColor value
    Cops.Name = "Cops"
    Cops.AutoAssignable = false

    local Criminals = Instance.new("Team", _Teams)
    Criminals.TeamColor = BrickColor.new("Bright orange")
    Criminals.Name = "Criminals"    
    Criminals.AutoAssignable = false
end

function teleportPlayers()

    -- Teleport Players to their spawn depending on which team they are on

    local players = _Players:GetPlayers()

    local copSpawn = workspace.teleportationpart
    local criminalSpawn = workspace.teleportationpart2


    for i = 1, #players do
        if players[i].TeamColor == BrickColor.new("Bright blue") then
            players.Character.Torso.CFrame = CFrame.new(copSpawn.Position)
        elseif players[i].TeamColor == BrickColor.new("Bright orange") then
            players.Character.Torso.CFrame = CFrame.new(criminalSpawn.Position)
        end
    end
end

function waitSome()
    local players = _Players:GetPlayers()
    for i = 1, #players do
        local stats = players[i].PlayerGui.fullGui.everything.gamePlay.informer
        spawn(function()
            stats.FontSize = 'Size24'
            stats.Text = "Intermission! Check our the shop and talk to your friends!"
            wait(30)
            stats.Text = ''
        end)
    end
end


function endGame()
    local players = _Players:GetPlayers()
    for i = 1, #players do
        players[i]:LoadCharacter()
    end
    currentMap:ClearAllChildren()
end



function goAhead()
    local players = _Players:GetPlayers()
    for i = 1, #players do
        players[i].PlayerGui.fullGui.everything.gamePlay.informer.Text = 'We have enough players to start!'
    end
end


function chooseMap()
    -- Chooses a new map
    -- Stuff to Add: Make it so it removes the old map
    local oldmap = game.Workspace.currentMap:GetChildren()
    oldmap:remove()
    local maps = game.ServerStorage.Maps:GetChildren()
    local clone = maps[math.random(1, #maps)]
    clone.Parent = currentMap
end

-- So this ending function is a bit messed up
-- Remember how your game works:

-- [1] If there is enough players, start the game
-- [2] Wait for the game to finish
-- [3] Cleanup
-- [4] Intermission
-- Back to step [1]




while wait() do -- Every "server frame" (kind of, dn't hurt me ScriptingHelpers!)
    if _Players.NumPlayers >= 2 then
        goAhead() -- Tell all players we have enough players to start!
        createTeams() -- Create the Cops and Criminals teams
        splitPlayers() -- Assign each player to one of these teams
        chooseMap() -- Put a new map into currentMap
        gameStart() -- Tell everyone the game is starting and set timeleft to 120 seconds
        teleportPlayers() -- Teleport all players to their spawn

        -- We need to add something to wait for the round to end
        -- I recommend using a while true do loop like so:


        while timeleft.Value > 0 do -- The round is still going
            wait()

        -- Past here runs after the round ended







        if workspace.NoCash.Value == true then
            timeleft.Value = 0
            end --Should this be 120?
            countDown() -- Sets the time to 120 and counts down
            endGame() -- Respawn all Players, remove the currentMap
            waitSome() -- Wait 30 seconds for intermission
        end
    else -- If there is only one player, don't start the game
        local player = _Players:GetPlayers()[1]

        player.PlayerGui.fullGui.everything.gamePlay.informer.Text = '2 players are needed to start! Invite a friend.'


    end
end

Did i spell something wronge ore what!? I thought it looked perfect but for some reaason it doesnt work at all! PLEASE HELP ME I DONT KNOW WHAT TO DO?!