Feedburner Plugin Errors

I was getting this error…
XML Parsing Error: junk after document element
Location: http://feeds.feedburner.com/MichaelDoig
Line Number 2, Column 1:Warning: ob_start(): output handler ‘ob_gzhandler’ cannot be used after ‘URL-Rewriter’ in /home/monkeysa/public_html/michaeldoig/wp-includes/functions.php on line 821

^
Then I updated the orderedlist feedburner plugin and now I’m getting this error…
This page contains the following errors:

error on line 2 at column 1: Extra content at the end of the document
Below is a rendering of the page up to the first error.
Please help,
Mike