Mixitup filtering worked for a while and not working anymore

Hi, i’m using mixitup filtering for the blog part of the website, and for some reason it worked and suddenly stopped… although I didn’t make any change.
Would really appreciate if someone can look and tell me what’s wrong here:

Thank you!

Here is my public share link: https://preview.webflow.com/preview/stephanie-copy?utm_medium=preview_link&utm_source=designer&utm_content=stephanie-copy&preview=8361d69695ac4deaf47ea53f34e5484e&pageId=5ea7e305ef525bb17f5d8588&mode=preview

This is the website link: https://stephanie-copy.webflow.io/blog