Hello,
Thank you for contacting Rank Math and bringing your concern to our attention. I’m sorry for any inconvenience this issue may have caused you.
I’m assuming that you’re referring to the sitemap redirect that needed to be applied to your Nginx config file:
https://rankmath.com/kb/fix-sitemap-issues/#nginx-server-error
Have you already contacted your web host to add the redirects for your sitemap?
Also, please share your website URL to check. You can add it in the sensitive data section

It is completely secure, and only our support staff has access to that section.
Looking forward to helping you.
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.