Hello,
Thank you for contacting Rank Math and sorry for any inconvenience that might have been caused due to that.
I am afraid that this is not a known issue. Could you please confirm if you have submitted your sitemap file to Yandex webmaster tools?
Please note that it takes about two weeks for the sitemap file to get processed and it would really help if you could share the errors reported if the file is submitted.
Looking forward to helping you. Thank you.
This is really a problem, not a joke. One site with this error has been around for several months. Another site immediately issued an error when adding a master to Yandex.
Sometimes forced indexing in Yandex site’s master cata helps, but the error returns again. Perhaps this happens after the change of Yandex algorithms.Robots.txt site map has. The problem is relevant for my site https://pasper.ru/
While indexing pages manually
Hello,
Thank you for contacting Rank Math today.
If this affects manual indexing then it is likely that this could have something to do with the custom directives on your robots.txt file. Could you please temporarily remove the extra directives and delete the static robots file(if it exists) so that Rank Math can generate the default virtual robots file and check if this will still be experienced?
Looking forward to helping you. Thank you.
My corrections did not help. Yandex does not see a site map. Uninstall your plugin.
Hello,
Thank you for contacting Rank Math today.
Apologies for the inconvenience and the frustration caused by this. If you are willing to give the plugin a second chance, we would be happy to login and investigate what is causing this on your site.
You can share access by editing the first post on this ticket and including your WP logins in the designated Sensitive Data section.

It is completely secure and only our support staff has access to that section. If you want, you can use the below plugin to generate a temporary login URL to your website and share that with us instead:
https://wordpress.org/plugins/temporary-login-without-password/
You can use the above plugin in conjunction with the WP Security Audit Log to monitor what changes our staff might make on your website (if any):
https://wordpress.org/plugins/wp-security-audit-log/
We really look forward to helping 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.