MyBB Community Forums

i have this at the top of my forum portal it only show up for guests please help

The following warnings occurred:
Warning [2] Cannot modify header information - headers already sent by (output started at /home/halohub2/public_html/index.php:2) - Line: 1548 - File: inc/functions.php PHP 5.2.11 (Linux)
File Line Function
[PHP] errorHandler->error
/inc/functions.php 1548 header
/inc/class_session.php 360 my_setcookie
/inc/class_session.php 98 session->load_guest
/global.php 56 session->init
/index.php 38 require_once
Warning [2] Cannot modify header information - headers already sent by (output started at /home/halohub2/public_html/index.php:2) - Line: 1548 - File: inc/functions.php PHP 5.2.11 (Linux)
File Line Function
[PHP] errorHandler->error
/inc/functions.php 1548 header
/inc/class_session.php 365 my_setcookie
/inc/class_session.php 98 session->load_guest
/global.php 56 session->init
/index.php 38 require_once
Warning [2] Cannot modify header information - headers already sent by (output started at /home/halohub2/public_html/index.php:2) - Line: 1548 - File: inc/functions.php PHP 5.2.11 (Linux)
File Line Function
[PHP] errorHandler->error
/inc/functions.php 1548 header
/inc/class_session.php 106 my_setcookie
/global.php 56 session->init
/index.php 38 require_once

Screenshot

Reupload a new copy of ./index.php from a fresh MyBB download.

Thanks that worked great your awesome