Views links - No Last Modification Date & Change Frequency

Hi,

The XML Sitemap of my site has many Views created links and appear correctly in the XML Sitemap page (https://thespanishcuisine.com/sitemap.xml), but no Last Modification Date appear nor Change Frequency and this is mostly causing some Google Warnings when crawling the site since it does not recognize these links as sitemap links...

It seems that without those values Google crawler doesn't consider the link as a valid link of the Sitemap.

Any idea how to fix this? Am I doing something wrong?

Thanks in advance!