Computercraft Credit Card System without colors!

 term.clear()
 local Data = {}
 --Functions
 function header() 
print(textutils.centerprint("+-------------------+", 1)) print(textutils.centerprint("|Credit Card Creator|", 2)) 
print(textutils.centerprinr("|

print(textutils.centerprint("+-------------------", 4)) end

function no_card() 
while not fs.exists("disk") do 
print(textutils.centerprint("------------------------+", 8)) 
print(textutils.centerprint("|Please insert Credit Card |", 9)) 
print(textutils.centerprint("+-------------------------+", 10)) 
sleep(2) 
end 
end

function card_isPresent_but_not_prepared() function load() 
fs.makeDir("disk/reditcards/") 
sleep(1) 
file = fs.open("disk/creditcards/card1.acc", "w") file.close() 
sleep(1) r
eturn true 
end 
function screen() 
while true do 
print(textutils.centerprint("

print(textutils.centerprint("

print(textutils.centerprint("

print(textutils.centerprint("+--------------------------+", 8)) 
print(textutils.centerprint("|

print(textutils.centerprint("+--------------------------+", 10)) 
sleep(1) 
end 
end 
parallel.waitForAny(load, screen) 
print(textutils.centerprint("

print(textutils.centerprint("

print(textutils.centerprint("

print(textutils.centerprint("+--------------------------+", 8)) 
print(textutils.centerprint("|

print(textutils.centerprint("+--------------------------+", 10)) 
sleep(3)

end

function asking_for_data() 
print(textutils.centerprint("

print(textutils.centerprint("

print(textutils.centerprint("

tem.setCursorPos(20,6) 
print("+-------------------+") 
term.setCursorPos(20,7) 
print("|

term.setCursorPos(20,8) 
print("+-------------------+") 
term.setCursorPos(20,10) 
print("+-------------------+") 
term.setCursorPos(20,11) 
print("|

term.setCursorPos(20,12) 
print("---------------------+") 
term.setCursorPos(10,7) 
write("Username:)
 term.setCursrPos(10,1) 
write("Password:") 
sleep(0.5) 
term.setCursorPos(21,7) 
username = read() 
term.setCursorPos(21,11) 
password = read("*") 
end

function checking()

if not username == nil and not password == nil then 
table.insert("Data", username) 
random_ID = (math.random(1000, 9999) 
table.insert("Data", random_ID) 
table.insert("Data", 0) -- This is the start money end 
end 
function create_file() 
pass_file = fs.open("disk/creditcards/pass1.pass", "w") 
pass_file.writeLine(StrUtils.SHA1(password)) pass_file.close()
 h = fs.open("disk/creditcards/card1.acc", "w") local serialized = (textutils.serialize(Data)) encrypted = StrUtils.encrypt(serialized, password) h.writeLine(encrypted) 
h.close()

--Function Calling 
header() 
if not fs.exists("disk/creditcards/card1.acc") then card_isPresent_but_not_prepared() 
end 
if fs.exists("disk/creditcards/card1.acc") then asking_for_data() 
end 
checking() 
create_file()