'The current identity (2) cannot Class security check (lacking permission 6)'?

So i made a loading script that loads through everything, but then it said 'The current identity (2) cannot Class security check (lacking permission 6)'

local Frame = script.Parent.Parent.Frame

Frame.Visible = true
local ContentProvider = game:GetService("ContentProvider")

for i, instanc in pairs(game:GetChildren()) do
	ContentProvider:PreloadAsync({instanc})
	Frame.Dot.Text = "Loading ".. instanc.Name
	wait(4)
end