Hello,
Sorry for the experience you had while using the plugin. We will try our level best to help you get to the bottom of this.
1. Website traffic and ranking: There are a few things you have to keep in mind when using any SEO plugin, not just Rank Math.
i. An SEO plugin alone cannot bring down or bring up the traffic in a day (or even a few days) unless incorrect Meta Tags are used by setting up the plugin improperly. That’s why we have a detailed tutorial on that:
https://rankmath.com/kb/how-to-setup/
ii. All the SEO plugins add Meta tags for the search engines which can be checked by viewing the source of a page. For instance, here:
view-source:https://rankmath.com/
Other popular plugins generate similar tags:
https://i.rankmath.com/n94KyH
And with the Rank Math plugin, additional tags are added to a page so search engines can understand the content on a website better.
iii. Google brings a new algorithmic update several times a month and the chances are great that your website got hit by that.
We have a full guide on that: https://rankmath.com/blog/google-algorithm-update-recovery/
And if you are using Rank Math PRO, you can even see if the drop in traffic correlates to an algorithm update. Here’s how:
https://rankmath.com/kb/google-algorithm-updates/
So, to start we would recommend a complete SEO audit by following the steps here: https://rankmath.com/blog/seo-audit/
2. Web stories sitemap: We can see it is working properly without any issues:

If you’re still facing the issue, please clear your browser cache and check again.
3. Site name on SERPs: Please note that there are various sources that Google uses to define your site name on SERPs including:
- og:site_name
- WebSite structured data
- Content in
title
elements
- Heading elements
Among them, Rank Math automatically includes the og:site_name
meta tag and the WebSite Schema on your website, and the rest you’ll have to include manually. You can also check the Google documentation on site-name: https://developers.google.com/search/docs/appearance/site-names
However, as is mentioned in the documentation, this process is automated by the algorithm and even though it takes into account the information on the website, it is still not guaranteed that your site name will come up correctly in Google SERPs since it’s solely decided by Google what they found relevant and user-friendly and which one they want to show.
For more details, you can check this guideline: https://rankmath.com/kb/display-site-name-in-search-results/
4. SEO Notice: The SEO notice you’ve shared states that you’ve disabled the Date Archives option. In order to enable this option again, please head over to your WP Dashboard > Rank Math > Titles & Meta > Misc Pages and from there enable the Date Archives option.

Let us know how it goes. Looking forward to helping you.
Thank you.