Random /feed 404 error from a wordpress site

[aj613]

My Moz Analytics report shows a 404 error on a page which I think should not exist at all.  The URL is http://henryplumbingco.com/portfolio-item/butler-elementary/feed/.  When I checked webmaster tools, it looks like there are a number of random /feed urls throwing 404 errors.

I am using WordPress and the Enfold theme.

Anyone know how to get rid of these errors?

Thanks,

[Mobilio]

If you view source one of links:http://henryplumbingco.com/portfolio-item/butler-elementary/
you will find code as:

And here is problem. Feed and comment feed works perfect. But post comment feed (last one) didn't work at all. If you want to clean up this you can use Yoast SEO -> Advanced -> Permalinks -> Cleanup Head -> Hide RSS link or you can use plugin for this. Like this one:
https://wordpress.org/plugins/mypace-remove-comments-feed-link/

[MattRoney]

Did Peter answer your question, Adam?

[aj613]

Yes.  Thanks Matt!  I don't think I got an e-mail about his post (I'm sure that is my fault). So it took me a while go check back in.

[MattRoney]

Haha, no worries at all! Just double-checking.

[BCaudill]

This post is deleted!

[marcoloprete_web]

Hello! Sorry, I have the same problem on my site (www.2become1.it). For example, in this page www.2become1.it/wedding-videographer-italy/engagement-chris-caterina/ i find this url: http://www.2become1.it/wedding-videographer-italy/engagement-chris-caterina/feed/ that doesn't exist.

I can't clean up head in SEO Yoast because the plugin's author disabled this option in the new version. Any suggest?

Thanks

Marco