Getting error after installing?

Warning: Cannot modify header information – headers already sent by (output started at /home/content/49/10187449/html/user/wp-content/themes/frisco-for-buddypress/groups/index.php:12) in /home/content/49/10187449/html/user/wp-includes/pluggable.php on line 876
how to solve this problem.?

http://ww.wp.xz.cn/extend/plugins/private-wp-suite/