The game does not teleport players? (Lobby to map!)

Here is my script, I have done something wrong but I do not know where! The game does not teleport players from the lobby to the map! Here is the script of the game it is a sword fighting game. (Used a video by AlvinBLOX)

-- Define variables

local ReplicatedStorage = game:GetService("ReplicatedStorage")

local ServerStorage = game:GetService("ServerStorage")

local MapsFolder = ServerStorage:WaitForChild("Maps")

local Status = ReplicatedStorage:WaitForChild("Status")

local GameLength = 50

local reward = 25

-- Game loop

while true do

Status.Value = "Waiting for enough players..."

repeat wait(1) until game.Players.NumPlayers >= 2 


Status.Value = "Intermission"

wait(10)

local plrs = {}

for i,player in pairs(game.Players:GetPlayers()) do
	if player then
		table.insert(plrs,players) -- Add each player into plrs table
	end
end

wait(2)

local AvailableMaps = MapsFolder:GetChildren()
  
local ChosenMap = AvailableMaps[math.random(1,#AvailableMaps)]

Status.Value = ChosenMap.Name.." Chosen"

local ClonedMap = ChosenMap:Clone()
ClonedMap.Parent = workspace

-- Teleport players to the map 

local SpawnPoints = ClonedMap:FindFirstChild("SpawnPoints")

if not SpawnPoints then
	print("SpawnPoints not found!")
end

local AvailableSpawnPoints = SpawnPoints:GetChildren()

for i,player in pairs(game.Players:GetPlayers()) do
	if player then
		table.insert(plrs,player)
		character = player.Character

		if character then
			-- Teleport them
			
			character:FindFistChild("HumanoidRootPart").CFrame = AvailableSpawnPoints.CFrame
		table.remove(AvailableSpawnPoints,1)
			
			-- Give them a sword 
			
			local sword = ServerStorage.Sword:Clone()
			sword.Parent = player.Backpack
			
			local GameTag = Instance.new("BoolValue")
			GameTag.Name = "GameTag"
			GameTag.Parent = player.Character
			
		else
			-- There is no character
			if not player then 
				table.remove(plrs,i)
			end
		end
	end
end

Status.Value = "Get ready to play!"

wait(2)

for i = GameLength,0,-1 do

for x, player in pairs(plrs) do
	if player then
		
		character=player.Character
		
		if not character then 
			-- Left the game
		else
			if character:FindFirstChild("GameTag") then
				-- They are still alive
				print(player.Name.." is still in the game!")
			else
				-- They are dead
				table.remove(plrs,x)
				print(player.Name.."has been removed!")
			end
		end
		
	else
		table.remove(plrs,x)
		print(player.Name.."has been removed!")
	end
end

Status.Value = "There are "..i.." seconds reamining,and "..#plrs.." left"

if #plrs == 1 then
	-- Last person standing
	Status.Value = "The winner is "..plrs[1].Name
	plrs[1].leaderstats.Bucks.Value = plrs[1].leaderstats.Bucks.Value + reward
	break
elseif #plrs == 0 then
	Status.Value = "Nobody won!"
	break
elseif i == 0 then
	Status.Value = "Time up!"
	break
end

wait(1)

end

print("End of game")

for i, player in pairs(game.Player:GetPlayer()) do character = player.Character

if not character then
	-- Ignore them
else
	if character:FindFirstChild("GameTag") then
		character.GameTag:Destroy()
	end
	
	if player.Backpack:FindFirstChild("Sword") then
	player.Backpack.Sword:Destroy()	
	end
	
	if character:FindFirstChild("Sword") then
	 character.Sword:Destroy()
	end
	
end

player:LoadCharacter()

end

ClonedMap:Destroy()

Status.Value = "Game ended"

wait(2)

end

you did

character:FindFistChild("HumanoidRootPart").CFrame = AvailableSpawnPoints.CFrame

instead of

character:FindFistChild("HumanoidRootPart").CFrame = AvailableSpawnPoints[1].CFrame

Why does it say FindFirstChild not valid or something in my output and it still doesnt teleport me