the map changing script in my game isn't working?

hi, im trying to make a map changing script for my game but the script isn't working. i got the script from a tutorial and followed all the steps carefully (added a folder called 'CurrentMap' named the bottom of the map 'Surface' put blocks on each map called 'Spawn' named the maps Map1, Map2 and Map3 and put all the maps into Lighting.)

Here is the script:

local players = game.Players:GetChildren()
local maps = game.Lighting.Maps:GetChildren()
local currentmap = game.Workspace:WaitForChild("currentmap")
local chosenmap = script:WaitForChild("chosenmap")
local spawner = game:Workspace:WaitForChild("spawn")
local choices = {}

function chooseMap()
 for i = 1,#maps do
  if maps[i]:isA("model")then
   table.insert(choices,maps[i])
  end
 end
 local picked = math.random(1,#maps)
 chosenmap.Valeu = choice[picked].name
end


function loadmap()
 local map = game.Lighting.maps.FindFirstChild(chosenmap.Value)
 map:Clone().Parent = currentmap
end


function deleteMap()
for i,v in pairs(currectmap:GetChilderen())do
  if v:isA("model")then
   v:Destroy
  end
 end
end


function teleportPlayer()
 for i,v in pairs(players)do
  v.Character.HumanoidRootPart.CFrame =
 currectmap:FindFirstChild(chosenmap.value).Spawn.Cframe
*Cframe.new(math.random(5,10),0,math.random(5.10))
 end
end

function teleportBack()
 for i,v in pairs(players)do
  v.Caracter.HumanoidRootPart.CFrame =
  spawner.Spawnlocation.CFrame*
  CFrame.new(math.random(5,10),0,math.random(5,10))
 end
end

while true do
 wait(3)
 chooseMap()
 loadMap()
 wait(1)
 teleportPlayers()
 wait(10)
 deleteMap()
 teleportBack()
end?

Let me know if you find a spelling error or if this script is outdated. thanks in advance from poopypigeon245.