Hello @kuuuzya,
Thanks for reaching out.
Indeed, your XML sitemap at https://itzine.ru/sitemap_index.xml is blank but upon checking the source code, we do see that Yoast is outputting the sitemap’s code correctly.
Probably, the server is caching the sitemap page causing it to be blank. We recommend that if you have a cache plugin or server-side cache, please flush the cache.
Most cache plugins allow you to exclude the sitemap URLs from being cached and/or minified and we would recommend implementing this for the sitemap to prevent any future caching issues. We also have additional information in regards to excluding the sitemaps from being included in the server cache at the following link: https://kb.yoast.com/kb/exclude-sitemaps-from-cache/ and also an article outlining the most frequent causes of a sitemap page displaying blank here: https://kb.yoast.com/kb/my-sitemap-is-blank-what-s-wrong/#blank
If you are still experiencing an issue with the sitemap not updating after checking your caching settings, you can also force a cache reset by temporarily disabling the sitemap feature, and then re-enabling. To do so please perform the following steps:
1. In WordPress go to SEO > General > Features
2. For ‘XML Sitemaps’ Toggle the switch to ‘Disabled.’
3. Click ‘Save Changes.’
4. Toggle the switch back to ‘Enabled.’
5. Click ‘Save Changes.’
We also have a guide on how to enable/disable XML Sitemaps here: https://kb.yoast.com/kb/enable-xml-sitemaps-in-the-wordpress-seo-plugin/
Can you please try the aforementioned suggestions?
