RSS FEED NOT WORKING!

My RSS feed isn’t working, when I try to input into feeburner it says:
“An error occurred connecting to the URL: Error getting URL: 404 – null”
Dopes anyone know what could be wrong or how to fix this?
When I try to confirm its validity it also says the feed does not validate…I’m pretty new to this so I really have no idea what could be going wrong.

My Blog URL is:
https://www.blog.studioearchitects.com/

and my Feed URL is:
https://www.blog.studioearchitects.com/feed

THANK YOU!