A PHP Error was encountered

Severity: Notice

Message: Undefined index: HTTP_REFERER

Filename: coinchairs_front/Common.php

Line Number: 92

Backtrace:

File: /var/www/html/bolie/application/controllers/coinchairs_front/Common.php
Line: 92
Function: _error_handler

File: /var/www/html/bolie/index.php
Line: 315
Function: require_once