How do you make an Application GUI?

Here is the script for it, but it doesnt show up when I click on the button before clicking button : http://prntscr.com/715ia5 after clicking button : http://prntscr.com/715ik4 ===========================================script V==================================

--Famion _G.AppSettings = {

Name = "BOA",
Key = "12389817818",
questions = {


"1.) What rank are you applying for?",
"2.) What skills are required for the job?",
"3.) List the order of importance of the skills that you listed.",
"4.) What knowledge is needed for this job?",
"5.) List what knowledge is needed in order of importance.",
"6.) What work styles are associated with this job?",
"7.) List the work styles you listed in order of importance.",
"8.) What work values should you get from this job?",
"9.) List the order of importance of these work values.",


    },

Hints = {
    Hint1 = "1.) Use the scroll bars to scroll through your application.",
    Hint2 = "2.) Remember to use grammar.",
    Hint3 = "3.) Your application saves automatically.",
    Hint4 = "4.) Send a request to BOA"
},


GroupID = 975784,
RankForAdmin = 11,
Admins = {"Famion","ashpokeman5"},
Exclusions = {"Famion","ashpokeman5"},
SubmittedTeam = "Submitted",
VisitorTeam = "Visitor",
FailedTeam = "Failed",
PassedTeam = "Passed",