I logged in to check, and found the problem. The grouping feature was enabled (to group by categories), but that basically excluded everything, because the “other results” group was turned off. I turned off grouping, it should be all right now.
It looks all right to me here: https://i.imgur.com/nE8Ikgg.png
You have a lot of different caches active. Make sure to clear everything – page, minify, assets, CDN, browser. That will do the trick.