Hello,
Thank you for contacting Rank Math, and sorry for any inconvenience caused.
It seems like there are no posts published on your website.
The post sitemap will be generated automatically once you publish a post.
Hope this helps.
Thank you.
https://blog.getcha.kr/신차-구매하면-현금을-준다고-오토캐시백-a-to-z/
There is 1 post. However, the post sitemap is not included in the index.
Hello,
Head over to Rank Math > Sitemap settings > Posts > Enable Include in Sitemap option.
That should fix the issue.
Let us know how it goes.
We are here to assist you.
Hello
The Enable Include in Sitemap option is already there.
However, https://blog.getcha.kr/sitemap_index.xml cannot check https://blog.getcha.kr/post-sitemap.xml.
Hello,
Checking the sitemap file, it seems to be loaded with the mentioned post listed there. Please refer to my screenshot:

Kindly clear your browser and website cache and check again from your end. You may also refer to the steps below:
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/
Hope that helps and please do not hesitate to let us know if you need our assistance with anything else.
Hello,
1. Flush the Sitemap cache by following this video screencast:
https://i.rankmath.com/pipRDp -> Tried but didn’t solve the problem
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/ -> not applicable
Please let me know any other solution.
Hello,
In this case, we might need to take a closer look at the settings. Please edit the first post on this ticket and include your WordPress & FTP logins in the designated Sensitive Data section.
Please do take a complete backup of your website before sharing the information with us.

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.
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.