Hello,
Thank you for contacting Rank Math and sorry for any inconvenience that might have been caused due to that.
I checked your robots.txt file and found that your main sitemap is not added.
Please add your main sitemap to your robots.txt file.
You can follow this guide for your reference:
https://rankmath.com/kb/how-to-edit-robots-txt-with-rank-math/
Then flush the sitemap again following this tutorial.
After that, clear your website’s cache and check again.
Let us know how that goes.
Thank you.
Hello,
Since we did not hear back from you for 15 days, we are assuming that you found the solution. We are closing this support ticket.
If you still need assistance or any other help, please feel free to open a new support ticket, and we will be more than happy to assist.
Thank you.
