Post Categories Navigation not working at all

Hi there,
I have put a Filter using Smart Post List for Post Categories and when clicked on a specific category, it should show the posts , but is not showing anything, and I seriously need help in this, even if I click on this link: https://insightfulcounselling.com/category/couples/ , its should redirect to the posts related to the category, instead it redirects to the blog archive, please reply asap.

Link for the Blog archive: https://insightfulcounselling.com/blog/ (In this page, Filter list for Post categories can be seen, try clicking on it and you will see no posts when clicked).

Waiting for your reply.
Thanks.

Aasher.

The page I need help with: [log in to see the link]