Index knack pages when embedded on website via CMS

I am embedding my Knack database on a Squarespace website. Google does not pick up the pages from Knack (checked search console, no results), Squarespace does not create them in the sitemap (whether embedded as a code block or embedded frame). If I try and make my own sitemap, none of the scraping tools pick up the Knack pages either. Has anyone else encountered this and found a workaround at all? Knack pages are not appearing in organic search results which is a real problem for me!