Hi Alex,
Thanks for getting in touch.
Could you please check the following:
1. Is the sitemap working fine in your browser? You can check that by going domain(.)com/sitemap_index.xml
If the sitemap is working fine, you can try validating it on this link: https://www.xml-sitemaps.com/validate-xml-sitemap.html
If the validation works, please move to the second point.
2. Have you verified the correct version of your website on Google? Please check if you have verified the www (or non-www) and https (or http) version of your website. If there is a mismatch, please fix that.
3. Finally, make sure you have cleared the cache and excluded Google bot from seeing a cached version of your sitemap.
If you have followed these and you are able to view your sitemap without any problem, then Rank Math is outputting your sitemap correctly and the error must be coming from Google. You can try and use a 3rd party sitemap plugin to confirm. Just make sure you have disabled the Sitemap module of Rank Math in WordPress Dashboard > Rank Math > Dashboard when using a 3rd party sitemap plugin.
If the other plugin works, please do let us know.
Thank you.
Hey I am not sure how to do step 3. and not really sure how to verify step 2 but when I google my business it shows up the correct website.
Hi Alex,
2 – check what your website’s URL in GSC is and what you see in browser’s URL bar.
3. We can help you with this. Just need to know which cache plugin you are using.
With that said, the sitemap is loading up just fine when we tested.
1. Please delete the sitemaps from the Google Search Console.
2. Clear your website cache and add sitemap_index.xml and *-sitemap.xml (this might be different for W3 Total Cache plugin) to the exclusion list in your Cache plugin.
3. Add sitemap_index.xml file again to your Google Search Console.
That should do the trick.
Hope that helps and please do not hesitate to let us know if you need our assistance with anything else.
okay ill get on that right now, the cache plugin I am using is WPRocket
is that what I need to do? and then after that I go to WPRocket and add those two lines to the exclusion list?
Add those lines here? 
Add sitemap_index.xml and *-sitemap.xml to this section after removing the sitemap from GSC?
Hi Alex,
Yes, that is correct.
Please perform those steps and let us know if the issue is gone.
I believe it was fixed! thank you so much for your help Todd
Hello,
We are super happy that this resolved your issue. If you have any other questions in the future, know that we are here to help you.
If you don’t mind me asking, could you please leave us a review (if you haven’t already) on https://wordpress.org/support/plugin/seo-by-rank-math/reviews/#new-post about your overall experience with Rank Math? We appreciate your time and patience.
If you do have another question in the future, please feel free to create a new forum topic, and it will be our pleasure to assist you again.
Thank you.
