Amazon gift card checker script reloading automatically?

[JuniorMan]

whenever I use amaon gift card checker script on inspect console it works for few minutes but then it automatically reloads?  how do I fix it?

 

I use this script which I got from nulled-

and please also tell me what to use in the "1234567890QWERTYUIOPASDFGHJKLZXCVBNM" filled for amazon.com gift cards format?

 

var speed = prompt("Type 1,000 if your PC is fast, 500 for a slow pc")
function makeid() {
  var text = "";
  var possible = "1234567890QWERTYUIOPASDFGHJKLZXCVBNM"; //you can edit this to your own generation code
  for (var i = 0; i < 14; i++)
    text += possible.charAt(Math.floor(Math.random() * possible.length));

  return text;
}

function main() {  
    document.getElementById("gcpromoinput").value = makeid();
    document.getElementById("button-add-gcpromo").click();
}

setInterval(function() {
    main();
}, speed);