ObbyHandler script with datastore

--[[
Thanks for using this script
This script was made by Joriangames/BloxianCode
Want to know how to use this and script explanation?
Check the video here: https://youtu.be/SIW3Vq-DjZI
]]

local DS = game:GetService("DataStoreService")
local stageDS = DS:GetDataStore("stageDS")

local spawnsFolder = game.Workspace.Spawns

game.Players.PlayerAdded:Connect(function(plr)
    local lead = Instance.new("Folder", plr)
    lead.Name = 'leaderstats'

    local stage = Instance.new("IntValue", lead)
    stage.Name = "Stage"
    stage.Value = 0

    plr.CharacterAdded:Connect(function(char)
        local hum = char:WaitForChild("Humanoid")
        wait()
        char:MoveTo(spawnsFolder[stage.Value].Position)

        hum.Touched:Connect(function(hit)
            if hit.Parent == spawnsFolder then
                print("Player touched a spawn")
                if tonumber(hit.Name) == stage.Value +1 then
                    stage.Value = stage.Value +1
                end
            end
        end)
    end)

    local data

    local success, err = pcall(function()
        data = stageDS:GetAsync(plr.UserId.."-stage")
    end)

    if success then
        if data then
            print("There was a value saved")
            stage.Value = data

            local char = plr.Character or plr.CharacterAdded:Wait()
            char:WaitForChild("HumanoidRootPart").CFrame = spawnsFolder[data].CFrame + Vector3.new(0,5,0)
        else
            local char = plr.Character
            char:WaitForChild("HumanoidRootPart").CFrame = spawnsFolder["0"].CFrame + Vector3.new(0,5,0)
        end
    else
        warn("An error occurred while checking datastore for "..plr.Name)
    end
end)

game.Players.PlayerRemoving:Connect(function(plr)
    print(plr.Name.." is leaving the game")
    local data = plr.leaderstats.Stage.Value

    local succ, err = pcall(function()
        stageDS:SetAsync(plr.UserId.."-stage", data)
    end)

    if succ then
        print("Succesfully saved the stage to the datastore")
    else
        print("An error occured while saving the stage-data for "..plr.Name)
    end
end)