Tags and Category Pages Have No H1 Heading

Site URL: https://nocturnallegal.com/content/tag/non-disclosure+agreement

I'm using Uber Suggest, which runs an analysis of your website to show critical areas in which your website may not be optimized for SEO.  I have a huge amount of pages that are missing H1 Titles. These are all sub-blog pages not necessarily accessible without a meta filter. They relate to each and every category and tag ever used on a blog post. The title of the page is "normal" font so not in the H1-H3 family. I cannot edit the page to add a proper title as it's auto-generated by Squarespace blog. Any thoughts/workarounds? The site is built on 7.0 in Brine. 

Thanks