Attribute-based CMS filters not working

I have been trying to create a page for a CMS collection with some filtering capabilities. I have tried adding the CMS filter from both Finsweet and Refokus, but neither of them worked. The filter simply does nothing.

Here’s the link to our project.

If anyone’s faced a simliar problem before or can tell what I’m doing wrong here, I could really use some help. Thanks.