Warning: include_once error message after adding define( 'SUNRISE', 'on' );

I added the line:
define( 'SUNRISE', 'on' );
to line 163 of wp-config.php in the root directory (screenshot attached) and am now getting the following warning messages on all pages of http://charitiestoday.org/

Warning: include_once(/home/charitdy/public_html/wp-content/sunrise.php) [function.include-once]: failed to open stream: No such file or directory in /home/charitdy/public_html/wp-includes/ms-settings.php on line 18

Warning: include_once() [function.include]: Failed opening '/home/charitdy/public_html/wp-content/sunrise.php' for inclusion (include_path='.:disappointed:usr/local/php5/lib/php':wink: in /home/charitdy/public_html/wp-includes/ms-settings.php on line 18

Can you please review and advise what I have done incorrectly?

Thanks very much,

Bruce