Problem with RSS feed

Hi,

All of a sudden, I’m getting messages of RSS feed errors on my dashboard, and Bloglovin’ and Feed Validators are unable to find my RSS feed. Just a few days ago, this was all in fine working order and it’s never been a problem before.

These are the error messages I’m getting:

Incoming Links:
RSS Error: A feed could not be found at https://blogsearch.google.com/blogsearch_feeds?scoring=d&ie=utf-8&num=10&output=rss&partner=wordpress&q=link:https://bluejeanbruises.com/. A feed with an invalid mime type may fall victim to this error, or SimplePie was unable to auto-discover it.. Use force_feed() if you are certain this URL is a real feed.

Other WordPress News:
RSS Error: The data could not be converted to UTF-8. You MUST have either the iconv or mbstring extension installed. Upgrading to PHP 5.x (which includes iconv) is highly recommended.

And I just…don’t understand any of this, since I have NO clue about RSS feeds and how they work, so all and any help would be greatly appreciated!

Thanks in advance, guys!