A PHP Error was encountered

Severity: Notice

Message: Undefined index: HTTP_REFERER

Filename: controllers/LanguageSwitcher.php

Line Number: 1

Backtrace:

File: C:\Inetpub\vhosts\crashcamisetas.com\httpdocs\application\controllers\LanguageSwitcher.php
Line: 1
Function: _error_handler

File: C:\Inetpub\vhosts\crashcamisetas.com\httpdocs\index.php
Line: 292
Function: require_once