A PHP Error was encountered

Severity: Notice

Message: Undefined index: HTTP_REFERER

Filename: controllers/Index.php

Line Number: 436

Backtrace:

File: /home/simbacom/public_html/application/controllers/Index.php
Line: 436
Function: _error_handler

File: /home/simbacom/public_html/application/controllers/Index.php
Line: 53
Function: logout

File: /home/simbacom/public_html/index.php
Line: 274
Function: require_once

A PHP Error was encountered

Severity: Warning

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

Filename: controllers/Index.php

Line Number: 436

Backtrace:

File: /home/simbacom/public_html/application/controllers/Index.php
Line: 436
Function: header

File: /home/simbacom/public_html/application/controllers/Index.php
Line: 53
Function: logout

File: /home/simbacom/public_html/index.php
Line: 274
Function: require_once