I Submitted my theme to Themeforest (Premium Marketplace), The reviewed my theme and figured out that the theme has this error :
Warning: wp-admin/admin-header.php:9 Cannot modify header information - headers already sent by (output started at /home/wp- includes/function.php:3894) require_once(‘wp-admin/admin- header.php’), header
But whenever I check the theme I can’t find this error, I also tried checking the theme with wp_debug set “true”, where can find this error in my theme? & how to solve this error.
This is what the reviewer stated :
Please make sure that your theme doesn’t raise any PHP errors, notices or warnings. Enabling wp_debug can help you with this. http://envato.d.pr/2ajUPe/3OpDZCbS