Hello,
Thank you for contacting the support and we regret the inconvenience caused.
Please follow the below steps and see if that helps:
1. Flush the Sitemap cache by following this video screencast:
https://i.rankmath.com/pipRDp
2. Exclude the Sitemap files of the Rank Math plugin in your caching plugin. The cache could be via a plugin or from the server. For plugins or Cloudflare, please follow this article:
https://rankmath.com/kb/exclude-sitemaps-from-caching/
3. Clear your website’s cache and remove all the sitemaps from your Google Search Console account, and then submit only the main sitemap: /sitemap_index.xml
Further, give Google some time to crawl your website again and see if the issue gets fixed.
Here’s a guide with more details: https://rankmath.com/kb/couldnt-fetch-error-google-search-console/
Hope that helps.
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.