How do you end an IntroGui, or better, a LocalScript regarding it?

When I created my intro, adding what I want and little details and such, the Intro Gui doesn't seem to end. So now all I have is a white screen after the intro's done. I tried ending the script with "end" but that didn't work. Also, I'm an amateur, I know not much of scripting.

Here's a copy and paste of the LocalScript. If anyone knows what's wrong, please tell me. Or you don't have to, I'm not forcing anyone.. But help would be nice :)

local ReplicatedStorage = game:GetService("ReplicatedStorage")


local TypeWriter = require(ReplicatedStorage:WaitForChild("TypeWriter"))

wait (5)
TypeWriter.typeWrite(script.Parent, "...")
wait (5)
TypeWriter.typeWrite(script.Parent, "He's dead.")
wait (9)
TypeWriter.typeWrite(script.Parent, "...")
wait (3)
TypeWriter.typeWrite(script.Parent, "I don't believe them, not one bit.")
wait (3)
TypeWriter.typeWrite(script.Parent, "I bet he's out there, waiting for me.")
wait (9)
TypeWriter.typeWrite(script.Parent, "...")
wait (3)
TypeWriter.typeWrite(script.Parent, "I'm going to find him.")
wait (3)
TypeWriter.typeWrite (script.Parent, "Will you help me?")
wait (9)

local textLabel = script.Parent

local function fadeOut()
    for i = textLabel.TextTransparency, 1, .1 do
        wait(.1)
        textLabel.TextTransparency = i
    end
end

local function fadeIn()
    for i = textLabel.TextTransparency, 0, -.1 do
        wait(.1)
        textLabel.TextTransparency = i
    end
end

local lastIndex
while true do

    fadeOut()


    local index 
    repeat
        index = math.random(1, #content)
    until lastIndex ~= index

    lastIndex = index


    textLabel.Text = content[index]
    fadeIn()

end