Cannot modify header information with The Daily

Getting an error on the page - click "wine" on here - http://exploringfoodandwine.com/

Warning: Cannot modify header information - headers already sent by (output started at /home/explorfw/public_html/wp-content/themes/bp-daily/header.php:2) in /home/explorfw/public_html/wp-includes/pluggable.php on line 934

Have redownloaded the theme, then reuploaded it, to no avail.

Previous similar errors - https://premium.wpmudev.org/forums/topic/headers-already-sent-error-message - have been put down to whitespace, but it can't be that, since I've triple reinstalled the theme.

Any ideas? Pretty unuseable at the moment!