I keep getting this error in my dashboard??

What does this mean??

Catchable fatal error: Object of class WP_Error could not be converted to string in /home5/drmaster/public_html/wp-includes/functions.php on line 302

the site is www.drmastersblog.com

<div class=”header_h2″>
<div class=”flash_slider”>
<div id=”flashcontent”>
<p>You need to upgrade your Flash Player to version 10 or newer.</p>
</div>
<!– end flashcontent –>
<script type=”text/javascript”>
var flashvars = {};
flashvars.xmlSource = “<?php bloginfo(‘template_url’); ?>/piecemakerXML.xml”;
flashvars.cssSource = “<?php bloginfo(‘template_url’); ?>/piecemakerXML.css”;
flashvars.imageSource = “<?php bloginfo(‘template_url’); ?>/images”;
var attributes = {};
attributes.wmode = “transparent”;
swfobject.embedSWF(“<?php bloginfo(‘template_url’); ?>/piecemakerNoShadow.swf”, “flashcontent”, “970”, “541”, “10”, “<?php bloginfo(‘template_url’); ?>/swfobject/expressInstall.swf”, flashvars, attributes);
</script>
</div>
<!–/flash_slider –>
</div>
<!–/header_h2 –>
<div class=”clr”></div>

HELP!!!