Fancybox not working

Please share a link

Oops, meant to do that! https://www.brycerafflesound.com/portfolio/

Ah, for some reason (theme, plugin?) your site is using a very old jQuery version which is incompatible with Easy FancyBox. In the header

<script type='text/javascript' src='https://ajax.googleapis.com/ajax/libs/jquery/1.5/jquery.min.js?ver=4.2.3'></script>

instead of the normal 1.11 version included with WordPress.