Error updating Domain Mapping Plugin – Sunrise ON

Hi Guys, I Try to update domain mapping plugin but it didin’t work. When I try to access a map domain: it get backs to home or register page.

When I try to access Settings – Domain Mapping I get this:

´Please edit your /home1/marcelo/public_html/wp-config.php and move the line define( ‘SUNRISE’, ‘on’ ); above the last require_once() in that file or make sure you updated sunrise.php.´

I already try to edit wp-config.php or use the old sunrise.php, but nothing changes. Any ideas?