Thanks for contacting us and choosing our product!
We have just checked your site and see you changed product categories but not change in the shortcode settings here: https://prnt.sc/5TnwM2oggMWe
We have just deleted it and re-add this shortcode and now your site is working fine.
It’s seems have small issue with cached.
Similar with other posttype like Post, Testimonial,… you should reselect categories if you changed them.
Hope this helps!