MixItUp with Dynamic List and categories too. How?

Hello, I’m actually try to build a portfolio (dynamic) with some dynamics categories too using MixtItUp. I found the amazing tutorial of @sabanna and I tried it but it’s seems something wrong…
Sorry, I’m a beginner and I’m not sure what’s wrong.
Please can you take a look on my Preview? Heeeelllp. lol.

Webflow preview :

https://preview.webflow.com/preview/agnesbrezephin?utm_source=agnesbrezephin&preview=f948a7b0a624baff82ab8aa0d2a9a1ca


Here is my public share link: http://preview.webflow.com/preview/agnesbrezephin?utm_source=agnesbrezephin&preview=f948a7b0a624baff82ab8aa0d2a9a1ca
(how to access public share link)

Hello, @So97! Sorry for the late reply.

Could you be more specific, please? Which page has filtering in it and what exactly went wrong?

Best regards,
Anna