Why wont this work?

while true do
A = game.StarterGui.ScreenGui
A.Llama.Visible = true
wait(3)
A.Llama.Visible = false
A.Rank.Visible = true
wait(3)
A.Rank.Visible = false
A.AntiSpam.Vislble = true
wait(3)
A.AntiSpam.Visible = false
A.AntiKill.Visible = true
wait(3)
A.AntiKill.Visible = false
A.Approval.Visible = true
wait(3)
A.Approval.Visible = false
A.Report.Visible = true
wait(3)
A.Report.Visible = false
wait(3)
end

Why wont this work? I've been trying to make it so then the Gui's change at intervals so then the Llama Gui appears first and then after 3 seconds it disappear then the Rank Gui Appears then after 3 seconds ect.. But the thing is, I asked a advanced scripter and they said that it should work fine.. But it isn't. Any help?

Is this in a LocalScript or a Server-side script?

If it is inside of a localscript then you should use game.Players.LocalPlayer.PlayerGui otherwise you will need to find the player's name somehow.

The startergui only changes upon respawn or rejoining the server.

You need to go through the player gui Player1.PlayerGui.A.Antikill.Visible = true

That should help you get the idea of rewriting it.