I'm making Intermission. It work very well in Studio but not in game. Can you help me?

I'm making intermission. It work fine in Roblox Studio but in game nothing of script work.

local text = script.Parent
local map = game.Workspace.MAP

function GameBegin()
map.Script.Disabled = false
for i = 3, 0, -1 do
    wait(1)
    text.Text = "Intermission: " ..i.. ""
    if i == 0 then
        script.Parent.Parent.Parent.Parent.Character:moveTo(map.Position)
        text.Text = "Game Started!"
        wait(1)
        for m = 3,0,-1 do
            wait(1)
            text.Text = "Time Left: " ..m.. ""
            if m == 0 then
                text.Text = "Time Up!"
                script.Parent.Parent.Parent.Parent.Character.Humanoid.Health = 0
                wait(5)
                GameBegin()
            end
        end
    end
end
end

if game.Players.NumPlayers > 0 then
    GameBegin()
end

This is server script.

Here is link of my game https://www.roblox.com/games/2187266915/KimKeng-Sword-Battle

More: "This game may not function as intended. The developer needs to update the game." What is it??? it's above Play Button.