Need to display more than 30 items on a product page

Site URL: https://www.carolynkdesigns.com

We launched our site just about two months ago and our site displays fused glass and chainmail products by category.  Each product page displays all the products for that particular category and/or tag.

Beginning sometime yesterday, the number of items displayed was being limited by the slider bar which maxes out at 30 as I learned this morning.  Late yesterday afternoon the Necklace page was displaying over 180 items.  All pages have behaved this way since late October -- displaying all the items for a particular product category.  Yesterday, the issue was first noticed in the backend site, but by today, the production site displayed the same behavior.

https://www.carolynkdesigns.com/necklaces

I have contacted Square space and the issue has been escalated, but they haven't yet resolved the issue.  

I was wondering if there are any ideas to get as many as a few hundred items from a specific category to display on a single product page?  Custom CSS?  Thanks in advance.