07:02:08.573 - Workspace.map:60: unexpected symbol near '?'?

Simply put, the error is saying you put "?" out of nowhere, with no reasonable context. The error is saying unexpected symbol, meaning it wasn't meant to be there. Regardless of whether you say it wasn't from the original script, I'd advise you to check the script and get rid of a question if there is one.

All in all, make sure to check for any "grammatical" errors in your script.

local players = game.Players:GetChildren()
local maps = game.Lighting:GetChildren()
local currentmap = game.Workspace:WaitForChild("CurrentMap")
local chosenmap = Script.Workspace: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.Value = choices[picked].Name
   end

function loadMap()
   local map = gam.Lighting.Maps:FindFirstChild(chosenmap.Value)
   map:Clone().Parent = currentmap
 end

function deleteMap()
  for i,v in pairs(currentmap:GetChildren()) do
    if v:isA("Model") then
       v:Destroy()
     end
   end
end

function teleportPlayers()
  for i,v in pairs(players) do
    v.Character.HumanoidRootPart.CFrame = currentmap:FindFirstChild(chosenmap.Value).Spawn * CFrame.new(math.random(5,10),0,math.random(5,10))
  end
end

function teleportBack()
  for i,v in pairs(players) do
    v.Character.HumaniodRootPart.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 -- Got rid of the question mark here.