I am really confused, could someone help me?

I made a basic round system and there is a part where it loads the map and after it does that it teleports you to the map. As soon as it got to line 42 of the code it gave me an error which was 'ServerScriptService.CS_ServerScriptService.CS_GameComponents.GameManager:42: bad argument #1 to 'new' (Vector3 expected, got nil)'.

Then I switched CFrame to Vector3 and I got this error on line 44 'ServerScriptService.CS_ServerScriptService.CS_GameComponents.GameManager:44: bad argument #3 to 'CFrame' (CFrame expected, got Vector3)', so then I switched it to CFrame instead of Vector3.

Suddenly, I got another error saying 'ServerScriptService.CS_ServerScriptService.CS_GameComponents.GameManager:44: bad argument #2 to '?' (Vector3 expected, got CFrame)'. It told me to change Vector3 to CFrame before, but now it want's me to change CFrame to Vector3.

I was wondering if anyone could help me find a solution to this mess, thanks!

Teleportation Code:

function teleportAllPlayers()
	local mapSpawn = CFrame.new(mapClone.Spawns:GetChildren().Position)
	for i, player in ipairs(game.Players:GetChildren()) do
		player.Character.Torso.CFrame = mapSpawn + Vector3.new(0, i * 5, 0)
		player.Playing.Value = 1
	end
end

Round Script:

function playerNotification(changeText)
	for _,v in pairs (game.Players:GetChildren()) do
		local gameInterface = v.PlayerGui:FindFirstChild("GameInterface")
		if gameInterface then
			gameInterface.Frame.TextLabel.Text = changeText
		end
	end
end

function waitForPlayers()
	while game.Players.NumPlayers < 2 do
		playerNotification("You need 1 more player to start the round!")
		wait(0)
	end
end

function intermissionTimer()
	if game.Players.NumPlayers >= 2 then
		for countDown = 10, 0, -1 do
			playerNotification("Intermission: " ..countDown)
			wait(1)
		end
	end
end

function displayGamemode()
	
end

function mapSelection()
	mapList = game.ReplicatedStorage.CS_ReplicatedStorage.CS_Maps.Maps:GetChildren()
	randomMap = math.random(1, #mapList)
	playerNotification("Choosing the map!")
	wait(4)
	mapChosen = mapList[randomMap]
	playerNotification("The map is: " ..mapChosen.Name)
	mapClone = mapChosen:Clone()
	mapClone.Parent = game.Workspace
end

function teleportAllPlayers()
	local mapSpawn = CFrame.new(mapClone.Spawns:GetChildren().Position)
	for i, player in ipairs(game.Players:GetChildren()) do
		player.Character.Torso.CFrame = mapSpawn + Vector3.new(0, i * 5, 0)
		player.Playing.Value = 1
	end
end

function startTimer()
	for countDown = 3, 0, -1 do
		playerNotification("Game begins in: " ..countDown)
		wait(1)
	end
end

function roundTimer()
	for countDown = 20, 0, -1 do
		playerNotification("Time left: " ..countDown)
		wait(1)
	end
end

function playersCurrentlyPlaying()
	for i, player in ipairs(game.Players:GetChildren()) do
		if player.Playing.Value == 1 then return true end
	end
	return false
end

function roundEnded()
	playerNotification("The round has ended!")
end

function teleportAlivePlayers()
	local mapSpawn = CFrame.new(workspace.CS_Workspace.CS_Lobby.Lobby.Spawns:GetChildren().Position)
	for i, player in ipairs(game.Players:GetChildren()) do
		player.Character.Torso.CFrame = mapSpawn + Vector3.new(0, i * 5, 0)
		player.Playing.Value = 0
	end
end

function mapDestroy()
	if mapClone.Parent == game.Workspace then
		mapClone:Destroy()
	end
end

function showResults()
	
end

game:GetService('Players').PlayerAdded:connect(function(Player)
	Player.CharacterAdded:connect(function(Character)
		Character:FindFirstChild("Humanoid").Died:connect(function()
			Player.Playing.Value = 0
		end)
	end)
	
	local Playing = Instance.new("IntValue", Player)
	Playing.Value = 0
	Playing.Name = "Playing"
end)

while true do
	waitForPlayers()
	wait(0)
	intermissionTimer()
	wait(0)
	displayGamemode()
	wait(5)
	mapSelection()
	wait(5)
	teleportAllPlayers()
	wait(0)
	startTimer()
	wait(0)
	roundTimer()
	wait(0)
	playersCurrentlyPlaying()
	wait(0)
	roundEnded()
	wait(0)
	teleportAlivePlayers()
	wait(0)
	mapDestroy()
	wait(0)
	showResults()
end

mapClone.Spawns:GetChildren().Position does not make sense. GetChildren returns a table.

It looks like you're trying to teleport players to a random spawn inside of mapClone.Spawns.

TeleportAllPlayers and TeleportAlivePlayers should look like this:

function teleportAllPlayers()
    local spawns = mapClone.Spawns:GetChildren()
    for i, player in ipairs(game.Players:GetChildren()) do
        player.Character.Torso.CFrame = spawns[math.random(#spawns)].CFrame + Vector3.new(0, i * 5, 0)
        player.Playing.Value = 1
    end
end

function teleportAlivePlayers()
    local spawns = workspace.CS_Workspace.CS_Lobby.Lobby.Spawns:GetChildren()
    for i, player in ipairs(game.Players:GetChildren()) do
        player.Character.Torso.CFrame = spawns[math.random(#spawns)].CFrame + Vector3.new(0, i * 5, 0)
        player.Playing.Value = 0
    end
end