Problem with sitemap

Hello,

We visited your product sitemap at https://www.matlabi.ir/product-sitemap1.xml and can confirm that it is blank but not empty. If you view the page source, there are items in there.

A blank sitemap is typically an issue with the stylesheet, a static file or a conflict in your setup. Please check the following:

1. Check whether the source of the sitemap shows you the data you would expect in an XML sitemap. Not sure how to see the source code, follow the steps in this help?article.

2. If you have a cache plugin or server side cache, please flush the cache. If the issue remains, please disable and re-enable the sitemap feature (steps here) to force a cache reset.?If you are not sure how to clear caching from theme/plugin please speak to those authors. If you want to clear cache from the server, please speak to your host provider. To clear the cache from a browser use this guide.

3. Our plugins create sitemaps on the fly. Using FTP or a file manager, please ensure there is not a physical file called sitemap_index.xml at the root of your WordPress installation. If there is, please rename or remove the static file.

4. Check that the XSL file, linked in the very top of the XML file, is available.?Sometimes this file gets blocked by?.htaccess?prevention of the?wp-content?directory. You can learn more here:?Sitemap Stylesheet

5. Open the sitemap and the sitemap stylesheet in Firefox to see if any errors display. If an error displays, please read this?article?about common sitemap errors.

6. Yoast SEO uses WordPress site URLs to generate the sitemap. In rare cases, these URLs may not match the preferred URL format of your site. Go to Admin > Settings > General and make sure the correct?Site Address and WordPress address match the sitemap URL you are trying to view.

Thanks for the tips.
But apparently you did not check my map site.
See I have no problem with the following link:
https://www.matlabi.ir/product-sitemap2.xml

But I have a problem with the following link:
https://www.matlabi.ir/product-sitemap1.xml

I have this error in Firefox browser:

XML Parsing Error: not well-formed
Location: https://www.matlabi.ir/product-sitemap1.xml
Line Number 22453, Column 87:
			<image:caption><![CDATA[Figure 5. Comparison of the output signal, proportional to T , as calculated from equation (20) to the corresponding first-order function. In equation (20), a = 300 μm, D = 7.7 × 10?5 m2 s?1 at T = 600 K due to the temperature dependence of D.]]></image:caption>
-----------------------------------------------------------------------------------------------------------^

With your guidance, I realized my mistake.
Means you know that I can correct it sitemap evaluated the accuracy and efficiency?
Google search because neither console nor elsewhere did not show me the error sitemap.
I accidentally noticed a sitemap problem.
The problem with my sitemap is the caption of the images that I am fixing.

Hello,

You mentioned https://www.matlabi.ir/product-sitemap1.xml and that’s what we checked. On checking again, we see that the sitemap now displays properly. See attached screenshot.

You may clear your browser cache, cookies, and restarting your browser to confirm. It sounds intimidating but we’ve got some guides?here?to walk you through it. If the issue is still present after that, can you please try a different modern browser? That’ll help us rule in/out the browser as the culprit here.

We are going ahead and marking this issue as resolved due to inactivity. If you require any further assistance please create a new issue.