Why will this simple script not work?

First code, not main problem.

a = game.Players.LocalPlayer.PlayerGui.Hacker.Frame
b = game.Workspace.Start
function clicked()

    local text = "<EoF";
for i = 1,#text do
    a.Mes1.Text = text:sub(1,i);
    wait(0.1);
end

    wait(1.5)
    local text = "LOADING LOCAL_COMPUTERS";
for i = 1,#text do
    a.Mes2.Text = text:sub(1,i);
    wait(0.1);
end

    b.Value = true
end
script.Parent.MouseButton1Down:connect(clicked)

Second code, the problem. NOTE THAT THIS IS IN THE SAME SCRIPT!

 if b.Value == true then
    wait(0.1)
    a.ENTER.Script2.Disabled = false
end

Thanks for helping!