Hello,
Thank you for contacting the support, and sorry for any inconvenience that might have been caused due to that.
It looks like there are server-related issues happening on your sitemap page. Have you already talked to your hosting provider about this? If yes, may I know what is their feedback?
As for the SEO Analysis Error (API Error: HTTP Error 400), this is related to the first issue. I submitted your website to an HTTP status checker and it returns a server error: https://i.rankmath.com/EUKBtz
Please contact your hosting provider about this (if you haven’t yet) and get back to us so we can further investigate this issue.
Also, you may also check if there are other plugins that might be causing issues to your website. To determine that, please follow this handy guide: https://rankmath.com/kb/check-plugin-conflicts/
Only the site admin would know and your users won’t be affected by this troubleshooting.
Let us know how it goes.
We are looking forward to hearing an update from you.
Hello,
We are super happy that this issue is already resolved. If you have any other questions in the future, know that we are here to help you.
If you don’t mind us 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 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.