Why does this work in studio but doesn't work in real play?

This script for somehow makes no errors in Studio, but makes lots in real play. How come this doesn't work in real play?

while true do
    local minigames = game.Lighting.Minigames:GetChildren()      
    local number = math.random(1, #minigames)
    local map = minigames[number]
    local spawns = map.Spawns:GetChildren()
    for intermission = 25,1,-1 do
        game.Workspace.Timer.Value = "Intermission: "..intermission
        wait(1)
    end
    game.Workspace.Timer.Value = "The game will start shortly."
    wait(3)
    game.Workspace.Timer.Value = "Choosing Minigame..."
    wait(3)
    game.Workspace.Timer.Value = "Minigame: "..map.Name
    wait(3)
    game.Workspace.Timer.Value = "Loading Minigame..."
    wait(3)
    local mapModel = map:clone()
    mapModel.Parent = workspace
    game.Workspace.Timer.Value = "Teleporting players..."
    wait(1)   
    for _, player in pairs(game.Players:GetPlayers()) do
        player.InGame.Value = true
        local character = player.Character
        local randomSpawn = spawns[math.random(#spawns)] -- EDIT
        if character then
            character:MoveTo(randomSpawn.Position) -- EDIT
         end
    end
    wait(1)
    for readySetGo = 3,1,-1 do
        game.Workspace.Timer.Value = readySetGo
        wait(1)
    end
    for timer = 90,1,-1 do
        for _, player in pairs(game.Players:GetPlayers()) do
        local character = player.Character
        if character then
         character.Humanoid.Died:connect(function()
         local inGame = player.InGame
         inGame.Value = false
    end) -- EDIT
 end
end
        game.Workspace.Timer.Value = "Time left: "..timer -- Not done yet? Then keep counting, i guess.
        wait(1) --Wait before the next second counting
        end
       game.Workspace.Timer.Value = "Game over! Winners get 15 points!"
        mapModel:remove()
        for _, player in pairs(game.Players:GetPlayers()) do
           inGame = player.InGame
           if inGame then
        if inGame.Value == true then
           print("It works")
           local points = player.leaderstats.Points
           points.Value = points.Value + 15
           player:LoadCharacter()
           inGame.Value = false
        end
        end
    wait(3)
    end
end

BTW: I have FilteringEnabled on.