Portfolio Grid Pagination isn't cycling through portfolio entries

Hi,

The Portfolio Grid Pagination isn’t cycling through portfolio entries, it just resets the page its on and goes to the top and the grid is still on page 1. I’ve seen many posts on this with no real answer, please help. You can see them on the bottom of the product pages, here’s a link to one but the issue is on all. https://iiunicraftstg.wpengine.com/products/manual-pump-cart-scissor-lift/ scroll to the bottom of the content.

Thank you!
Chris