Converting HTML form input to PDF – How to print more than 2 outputs

I’m new to coding and trying to accomplish passing input data from a form to a PHP response page and displaying it in the browser. The user can then click on a button to save the HTML element to PDF. The code works when displaying 2 form outputs eg. but as soon as I add more outputs from the form the javascript doesn’t seem to run. I cant understand what is going wrong.