I edited the
functions.php files in my WordPress site to add Google Analytics tracking code. Now, when I try to login to my admin area, the following warning appears and I am unable to login to my WordPress account:
Cannot modify header information - headers already sent by (output started at /home/wwwwww/public_html/wp-content/themes/poker-complex/functions.php:11) in /home/wwwwww/public_html/wp-includes/pluggable.php on line 934
How to solve this problem?