Teleport Part is not a valid member of workspace ?

I have a Part named "Teleport Part" in my workspace. The reason for that part is to teleport to it when i press a button. But when i press the button it says Teleport Part is not a valid member of workspace. My part is in a model.

Just ignore the comments since i took this script from somewhere else but put my info in it. It used to work before but suddenly stopped.

Player = game.Players.LocalPlayer --Only works inside a localscript, replace with the line below it if you need it as a Script.
    -- Player=script.Parent while (not Player:IsA("Player")) do Player = Player.Parent end

    script.Parent.MouseButton1Up:connect(function()
        local index, Time
        for index, Time in pairs(Player.leaderstats:GetChildren()) do
            Time.Value = 0
local db = true
local player = game.Players.LocalPlayer
local target = game.Workspace.TeleportPart
local delay = 3
script.Parent.MouseButton1Click:connect(function()
    if db == true then
        db = false
        player.Character.HumanoidRootPart.CFrame = target.CFrame * CFrame.new(0, 3, 0)
        for i = delay, 1, -1 do
            script.Parent.Text = i
            wait(1)
        end
        script.Parent.Text = "Reset"
        db = true
    end
end)
        end
    end)

Any sort of help will be appricieated