Cannot find gui?

I have made a script in a gui and for some reason it keeps having an error saying "MoneyGUI is not a valid member of PlayerGui"

Here is the script :

local player = script.Parent.Parent.Parent
local startergui = player.PlayerGui
local moneyv = startergui.MoneyGUI.MoneyV
local frame = script.Parent.Frame
local image1,image2,image3,image4,image5 = frame.Image_1,frame.Image_2,frame.Image_3,frame.Image_4,frame.Image_5
local nem = script.Parent.Nem

image1.MouseButton1Down:connect(function()
    if moneyv.Value <= image1.Pay.Value then
        moneyv.Value = moneyv.Value-image1.Pay.Value
    else
        nem.Visible = true
        wait(2)
        nem.Visible = false
    end
end)