A PHP Error was encountered

Severity: Notice

Message: Undefined index: HTTP_REFERER

Filename: controllers/Language.php

Line Number: 25

Backtrace:

File: /home/ec2-user/usnaper_global/application/controllers/Language.php
Line: 25
Function: _error_handler

File: /home/ec2-user/usnaper_global/index.php
Line: 292
Function: require_once