A PHP Error was encountered

Severity: Notice

Message: Undefined index: HTTP_REFERER

Filename: controllers/Welcome.php

Line Number: 591

Backtrace:

File: /home/elite/public_html/en/application/controllers/Welcome.php
Line: 591
Function: _error_handler

File: /home/elite/public_html/en/index.php
Line: 322
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at /home/elite/public_html/en/system/core/Exceptions.php:271)

Filename: controllers/Welcome.php

Line Number: 591

Backtrace:

File: /home/elite/public_html/en/application/controllers/Welcome.php
Line: 591
Function: header

File: /home/elite/public_html/en/index.php
Line: 322
Function: require_once