Preference button not working

I’ve added the following (Version 1 code) into the footer of my site. But when I click the link it just sends me to the top of the page (#).

How does this (default supplied) code need to be modified for it to work?

There are also two versions of the code presented by default in two different places, which is just confusing btw, and neither of them work, and there are no additional obvious instructions to make them work:

Version 1

[mywebsite.com]/wp-admin/admin.php?page=banner-settings > Preference Center Button:

<a href="#" onclick="window.displayPreferenceModal();return false;" id="termly-consent-preferences">Consent Preferences</a>

Version 2

termly.io > Consent banner settings > Embed preference center link:

<a href="#" class="termly-display-preferences">Consent Preferences</a>

Thank you!

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