Какво е това и как да го оправя?

[Anton40]

[phpBB Debug] PHP Notice: in file /includes/session.php on line 1024: Cannot modify header information - headers already sent by (output started at /home/extreme-gamingbg.com/extreme-gamingbg.com/index.php:1)
[phpBB Debug] PHP Notice: in file /includes/session.php on line 1024: Cannot modify header information - headers already sent by (output started at /home/extreme-gamingbg.com/extreme-gamingbg.com/index.php:1)
[phpBB Debug] PHP Notice: in file /includes/session.php on line 1024: Cannot modify header information - headers already sent by (output started at /home/extreme-gamingbg.com/extreme-gamingbg.com/index.php:1)

 

[djviksbg]

спира връзката с header-а защото той вече се използва

където имаш

header('Location stranica.php');
exit(); //добавяш това и ще се оправи ;)

 

[IzKuFeLiQqQqQ]

ако не стане както каза @djviksbg 1-вото <?php го направи

<?php
ob_start();
session_start();