Not Filtering

Also the page that pops up with all my products shows all the woocommerce product filter info at the top of the page AND on the sidebar.

Hello. Set please permalinks and try again …

Which permalinks am I changing and what am I changing them to?

wp-admin/options-permalink.php
https://c2n.me/3fUdQe7.png
+
Product permalink base: /shop/%product_cat%

My current Post Name is NOT ticked and looks like this:

https://www.moonlightmattress.com/sample-post/

Should I tick it?
And what should I change it to?
And then do I untick it?
Sorry, I have no idea what permalinks are or do.

https://www.moonlightmattress.com/shop – 404
Product permalink base: /shop/%product_cat%
We are talking about products

https://www.demo.woocommerce-filter.com/product-category/clothing/ – let your links willbe like this one

Sending me a demo page does not help me at all.
How do I change my Permalinks page?
Here it is:

Default https://www.moonlightmattress.com/?p=123
Day and name https://www.moonlightmattress.com/2015/04/13/sample-post/
Month and name https://www.moonlightmattress.com/2015/04/sample-post/
Numeric https://www.moonlightmattress.com/archives/123
Post name https://www.moonlightmattress.com/sample-post/
Custom Structure https://www.moonlightmattress.com
Optional

Category base
Tag base
Product category base
Product tag base
Product attribute base /attribute-name/attribute/
Product permalink base

Default https://www.moonlightmattress.com/?product=sample-product
Product https://www.moonlightmattress.com/product/sample-product/
Shop base https://www.moonlightmattress.com/shop/sample-product/
Shop base with category https://www.moonlightmattress.com/shop/product-category/sample-product/
Custom Base Enter a custom base to use. A base must be set or WordPress will use default instead.

It is very easy question: https://c2n.me/3g1Ek5p.jpg
Read please more tutorials how to use wordpress

I added the code you suggested but it made no difference. All the products show up for every filter.

Default https://www.moonlightmattress.com/?product=sample-product
Product https://www.moonlightmattress.com/product/sample-product/
Shop base https://www.moonlightmattress.com/shop/sample-product/
Shop base with category https://www.moonlightmattress.com/shop/product-category/sample-product/
Custom Base /shop/%product_cat%

Hmm. I now tested new version of the plugin and can suggest you a deal: you write me PM with your wp-admin access and ftp <[email protected]> – I install to your site new version, premium but beta 2.0.0 – and will make it works. You will get the filter – I will get some fixed bugs =)

Hello sneed, I had the same problem. I set the permalinks to Posts=Postname, Products=Shop base with category. Now the filter works