atom.xml needed

See:

https://codex.wordpress.org/WordPress_Feeds#Finding_Your_Feed_URL

Also, the site given is not currently resolving and it does not seem normal that all your links have index.php in them.

https://sitecheck.sucuri.net/results/designatmnblog.com/wp/

Somewhere you are rewriting all site URL’s to index.php/whatever

Once you figure all that out you can validate your RSS or Atom Feeds here:

https://validator.w3.org/feed/

http://designatmnblog.com/wp/index.php/atom/ validates (but again the URL is not pretty and may not be your best choice for SEO)