I'm coming up with an error and trying to find the solution, but google's results bring up mostly sites with the same problems.
Warning: MagpieRSS: Failed to parse RSS file. (Mismatched tag at line 25, column 21) in /home/does/not/matter/rss_fetch.inc on line 238
	Code:
	function error ($errormsg, $lvl=E_USER_WARNING) {
        global $MAGPIE_ERROR;
        
        // append PHP's error message if track_errors enabled
        if ( isset($php_errormsg) ) { 
            $errormsg .= " ($php_errormsg)";
        }
        if ( $errormsg ) {
            $errormsg = "MagpieRSS: $errormsg";
            $MAGPIE_ERROR = $errormsg;
            trigger_error($errormsg, $lvl);                
        }
}
 line 238 in bold.