Sitemdeki resimlere alt etiketi ekliyordum arkadaşlar şuanda error.log a baktığımda şunlar çıkmaya başladı
[31-Mar-2017 19:46:12 UTC] PHP Warning: Cannot modify header information - headers already sent by (output started at /home/******/public_html/index.php:43) in /home/*****/public_html/wp-includes/pluggable.php on line 1179
[31-Mar-2017 20:02:22 UTC] PHP Warning: Cannot modify header information - headers already sent by (output started at /home/******/public_html/index.php:43) in /home/****/public_html/wp-includes/pluggable.php on line 1179
[31-Mar-2017 20:06:19 UTC] PHP Warning: Cannot modify header information - headers already sent by (output started at /home/******/public_html/index.php:43) in /home/*****/public_html/wp-includes/pluggable.php on line 1179
[31-Mar-2017 20:14:31 UTC] PHP Warning: Cannot modify header information - headers already sent by (output started at /home/*****/public_html/index.php:43) in /home/****/public_html/wp-includes/pluggable.php on line 1179


neden olabilir?