Error when cllicking on RSS feed

try validating your feed: https://validator.w3.org/feed/

I just did that, and this is what it told me:

This feed does not validate.
line 81, column 220: XML parsing error: <unknown>:81:220: not well-formed (invalid token) [help]

SO I clicked help, and this is what I get:

DOCUMENTATION
Message

XML Parsing error: syntax error

Explanation

Your feed is not well formed according to the XML specification. All feeds must be well-formed XML. In fact, IE7 and the RSS platform in Windows Vista only support feeds that are well-formed XML.

Solution

The text of the error may contain additional helpful details. At a minimum, the actual line and column number where the error was detected will be reported.

The most common cause is encoding errors. There are several basic approaches to solving this: escaping problematic characters (< becomes <, & becomes &, etc.), escaping entire blocks of text with CDATA sections, or putting an encoding declaration at the start of the feed.

Another common error is the inclusion of whitespace characters (spaces, tabs, newlines) before the XML Declaration. If an XML Declaration is included, it must be the first thing in the document

Not clear? Disagree?

You might be able to find help in one of these fine resources.

I’m not really sure what I should do haha. Do you have any idea what this means?

Have you tried:

– deactivating all plugins to see if this resolves the problem. If this works, re-activate the plugins one by one until you find the problematic plugin(s).

– switching to the default theme to rule out any theme-specific problems.

– resetting the plugins folder by FTP or PhpMyAdmin. Sometimes, an apparently inactive plugin can still cause problems.

– re-uploading all files & folders – except the wp-content folder and wp-config.php & root .htaccess files – from a fresh download of WordPress. Make sure that you delete the old copies of files & folder before uploading the new ones.

No I have not tried this yet. Now that I think of it, I kind of have a feeling that it may be a plugin. I downloaded this plugin yesterday that may be messing with it. I will see if I can figure it out.