Ah, ok, thats only the teaser for the gallery, that was never planned as “clickable” gallery. If you want, you can add a linked headline, or like in our demo, a text to the right (or left) with buttons.
You can also try to wrap the shortcode with the “a” tag:
<a href="http://google.com"> [quickgallery_teaser id="2319" cols="3"] </a>
Just replace “href” with the link to the page you want to refer and the shortcode with your current shortcode, this solution should work.