Feedburner error 578

[szekuriti]

Hello! I've just now installed a newest WP engine. I want to add its RSS adress into my Feedburner. But Feedburner says: Error on line 578: The markup in the document following the root element must be well-formed.

This is the rss feed: ​http://szekuriti1.fw.hu/?feed=rss2

Thanks!

[dd32]

You've got a plugin loaded which is using Snoopy, which Core does not use (Instead, it uses the WP_HTTP library, which is more reliable and will work around the disabled function on your server)

The reason its not parsing is because this:

<b>Warning</b>:  fsockopen() has been disabled for security reasons in <b>/storages/storage1/s/sz/szekuriti1/public_html/wp-includes/class-snoopy.php</b> on line <b>1142</b>

is output in the content of your RSS feed, which must come from a plugin.

Closing as invalid as this is not a core bug, its a plugin bug, you should seek support in the ​support forums, first step will be to disable all plugins.
Closing as