no sitemap generation

I see it.

After initial setup of the xml sitemap it helps if you re-publish an existing post.

hmm strange i have deleted cache and on chrome i got

This page contains the following errors:

error on line 1 at column 7: XML declaration allowed only at the start of the document
Below is a rendering of the page up to the first error.

but on firefox and ie works ??

Looks OK to me on Chrome.

ok maybe some cache issues to my chrome. thank you.

Hi,
I am using yoast but my sitemap URl https://alquranstudy.com/sitemap_index.xml not working. plz let me know what i should do.