Element should have been "select" but was "div"

Sorry, but you are.

Which is called automation.

Last ditch attempt at getting the point across to you …

Katalon Studio allows you to automate/simulate the actions of a user using a web-based application (AUT).

web-based: Something written in HTML/CSS/JavaScript that runs in a web browser.
AUT: Application Under Test.

Repeat: that is not the problem. The sooner you move on, the sooner we get to the bottom of the issue. No real-life human user would even know the <input type=hidden...> is even there. That being the case, nor should your Test Case.

Advice:

Prerequisites: Basic knowledge of HTML (and some CSS).

  1. Write down the steps a HUMAN takes when entering an address into your AUT.

  2. Convert those steps into Test Case code in Katalon

That’s the job.

Likely looking for the wrong thing the whole time. Should have done this first…

The assistance you’re getting right now is tempered by the paucity of information you’re supplying. You’re still not explaining the steps, like this example:

  1. Click on the button marked “Order Pizza”.
  2. Enter a person’s name in the field that pops up.
  3. Click the submit button.

Also, add anything else relevant to the problem – [TIP] How To Help Us Help You! – I gave you that link before. I hope you read it.

I hope your next post contains all the missing details – perhaps then someone will be able to help you better.