Every time i try to log in to word press i get the following error message, any help would be appreciated 

Warning: Cannot modify header information - headers already sent by (output started at /home/content/n3pnexwpnas02_data03/32/3943132/html/wp-config.php:1) in /home/content/n3pnexwpnas02_data03/32/3943132/html/wp-includes/pluggable.php on line 1223