UP Order Limits Quantity Break

I’m testing this for the second time - first in March, and now again. After launching it and adding a product condition, the page freezes. I’m getting rid of it for good.

This app seemed good at first. When I added my second rule, it stopped working. As I was troubleshooting, I realized it was causing an error trying to add any item (even ones not in any rule) to the cart.