I know that anumber of others have  had similar issues and I have tried some of the things mentioned in their responses.  However, I still cannot get an rss feed object to show on my site.  It still says cannot open link.  I have checked php setting 7.4.  I have tried both my blog and external sites but nothing show.  Is anyone willing to help me with this?  The url of my test site is below.  Thanks.

https://www.holymansworld.com/new/index.html

Cannot open this link.