What is causing my GameRounds script to break all of a sudden? (Capinbuilda)

I was testing my GameRounds script for my game, and i wanted to ask do you know why it keep suddenly breaking?

What it does is, when you join your able to put about 3-5 short rounds into it then after that, it completely stop working, there is a team score keep and that suppose to show up but after the break it wont show, it suppose to teleport players to map but after break that stops, and the only way to fix is to rejoin the game which is a new server.

I tested it 3 times and all test the game broke at the map called hillside after the 5th so it could be anything but i do know this i really need a fix for this so could you please help me?

the script is over 400 lines long so this part of the code is were i think it is breaking.

function teleportPlayer(player)
	local shieldDuration = 5
	local character = player.Character
	local spawn = getRandomSpawn(player.TeamColor)
	local uppertorso = character.UpperTorso
	uppertorso.CFrame = spawn.CFrame + Vector3.new(0, 2, 0)
	local shield = Instance.new("ForceField", character)	
	game.Debris:AddItem(shield, shieldDuration)
	local backpack = player.Backpack
	local class = player.Class.Value
	local gun = game.Lighting.Guns.Tools[class]
	local gunHopperbin = gun.Gun:clone()
	gunHopperbin.Parent = backpack
	local playerScripts = game.Lighting.Scripts:GetChildren()
	for index, object in pairs(playerScripts) do
		object:clone().Parent = backpack
	end
end

function getRandomMode()
	local gameModes = {_G.eliminationRound, _G.teamSwapRound, _G.controllerRound,}
	local randomSlot = math.random(1, #gameModes)
	local randomMode = gameModes[randomSlot]
	roundType = gameModeNames[randomSlot]
	_G.announce("Round chosen: "..gameModeNames[randomSlot], Color3.new(0, 0, 0), 2)
	wait(1)
	local description = descriptions[randomSlot]
	for index, text in pairs(description) do
		_G.announce(text, Color3.new(0, 0, 0), 2)
		wait(1)
	end
	return randomMode
end

function getRandomMap()
	local gameMaps = game.Lighting.Maps:GetChildren()
	local randomMap = gameMaps[math.random(1, #gameMaps)]
	_G.announce("Map chosen: "..randomMap.Name, Color3.new(0, 0, 0), 2)
	return randomMap
end

function getRandomSpawn(teamColor)
	if (workspace:findFirstChild("Map")) then
		local spawns = {}
		if (teamColor == game.Teams.Red.TeamColor) then
			spawns = workspace.Map.Red:GetChildren()
		else
			spawns = workspace.Map.Blue:GetChildren()
		end
		local spawn = spawns[math.random(1, #spawns)]
		return spawn
	end
	return nil
end

function playerHasShirt(player, shirtID)
	local badgeService = game:GetService("BadgeService")
	if (badgeService:UserHasBadge(player.userId, shirtID)) then
		return true
	else
		return false
	end
end

function organizeTeams()
	local teamNum = 1
	repeat		
		local spectators = {}
		local teams = {"Red", "Blue"}
		local players = game.Players:GetChildren()
		for index, player in pairs(players) do
			if (player.TeamColor == game.Teams["Spectators"].TeamColor) then
				if (player.Character:findFirstChild("UpperTorso")) then
					table.insert(spectators, player)
				end
			end
		end
		local randomPlayer = spectators[math.random(1, #spectators)]
		randomPlayer.TeamColor = game.Teams[teams[teamNum]].TeamColor
		teleportPlayer(randomPlayer)
		local spectatorNum = 0
		local players = game.Players:GetChildren()
		for index, player in pairs(players) do
			if (player.TeamColor == game.Teams["Spectators"].TeamColor) then
				if (player.Character:findFirstChild("UpperTorso")) then
					spectatorNum = spectatorNum + 1
				end
			end
		end
		teamNum = (teamNum == 1) and 2 or 1
	until (spectatorNum == 0)
end

workspace.ChildAdded:connect(function(child)
	if (child.className == "Script") or (child.className == "LocalScript") then
		child:remove()
	end
end)

game.Players.ChildAdded:connect(playerEntered)

workspace.Showcase:remove()

while wait(1) do
	local numPlayers = game.Players.NumPlayers
	if (numPlayers >= minPlayers) then
		if (not gameStarted) then
			startGame()
		end
	else
		local difference = minPlayers - numPlayers
		local playerWord = (difference > 1) and "players" or "player"
		_G.announce("Waiting for "..difference.." more "..playerWord, Color3.new(0, 0, 0), 2)
	end
end