I'm having an issue with this plugin. When I test out a button that is linked to another page, the lightbox loads on to the bottom of the page. I'm following the instructions but step by step. I am using the Brine template in Squarespace. Any ideas what the issue could be? This is the url of the page with the lightbox set on the "view whole gallery" button: https://www.cmproperties.es/properties/mp150-superb-2-bedroom-apartment