Can anyone help me by telling me what this message means. I am unable to log on to my website. Whenever I try it just comes up with this - I can't actually get to the wp-login page.
define( 'WPCACHEHOME', '/home/my name/public_html/wp-content/plugins/wp-super-cache/' ); //Added by WP-Cache Manager
Warning: Cannot modify header information - headers already sent by (output started at /home/name/public_html/wp-config.php:2) in /home/myname/public_html/wp-includes/pluggable.php on line 881