No 404 Logs on Rankmath

Dear Team,

I am using a custom 404-page imported through the provided woodmart templates, the page is setup using the woodmart settings.

I also use rankmath but never get 404 log. Contacted rankmath and they confirmed the problem is due to this custom 404 page.

Below is what they responded (after a lot of to-and-fro)

We had a closer look at the 404 page on your website and we noticed two issues:
1. 404 URLs are redirected to the 404 page instead of returning a 404 status on the same URL.
2. The 404 page itself is returning a 200 (OK) status instead of a 404 status. Here's a screenshot for a quick reference: https://i.rankmath.com/okodk6

We use the is_404 condition of WordPress to detect the 404 page. If this condition returns false on a custom 404 page then the page will not get logged in the 404 Monitor.

Below is how my 404 setting looks like:

What do I do to get 404 logs of the site? 404 page link: https://durvient.com/page-404/