Running the script with a button

Hi, I have a problem. I’m using Typeform to create a survey for my website. I managed to write a script that, when I press a button, launches a survey in a window on my website. I connected the WordPress button ID to the script. At some point everything was working, but now suddenly the button instead of running the script redirects to polygonstudio.eu/# (the link in the button settings is empty, so it is set to # by default). Below is the script code that I pasted in WPCode to the Head section as “Universal Fragment”:

<script src="https://embed.typeform.com/next/embed.js"></script>

<script>
  document.addEventListener("DOMContentLoaded", function() {
    var myButton = document.getElementById("ankietabutton");
    if (myButton) {
      myButton.addEventListener("click", function() {
        window.typeformEmbed.makePopup('https://9ypjmq3pbhg.typeform.com/to/vz0yqohg#utm_source=tf-embed-popup-button', {
          mode: 'popup',
          hideHeaders: true,
          hideFooter: true
        }).open();
      });
    }
  });
</script>

The page I need help with: [log in to see the link]