Post can not show in sitemap

Hello,

Thanks for contacting us and sorry for any inconvenience that might have been caused due to that.

I can check that your site has a total of 19 posts and your post sitemap already includes all of them:

And your posts sitemap is accessible at https://www.healthideabd.xyz/post-sitemap.xml since you are using the WWW version of your site. However, the non-WWW version of the sitemap should redirect to the WWW version but it isn’t. Please follow this guide to fix the issue: https://rankmath.com/kb/couldnt-fetch-error-google-search-console/#num-5-4-redirect-all-three-other-versions-to-your-preferred-variation

Hope this helps.