No I didnt.. hmm.. for some users this comes up: Warning: Cannot modify header information - headers already sent by (output started at /home/content/65/8188165/html/wp-content/themes/adsense-id/functions.php:37) in /home/content/65/8188165/html/wp-includes/pluggable.php on line 897 I changed the dns nameservers yesterday so that might have something to do with it.
The error you are getting is because the page is trying to set header information, i.e session, cookie, header content etc but there has already been information sent.