A PHP Error was encountered

Severity: Notice

Message: Undefined index: HTTP_REFERER

Filename: controllers/Pages.php

Line Number: 404

Backtrace:

File: /var/www/vhosts/coflow.com.tr/destek.coflow.com.tr/application/controllers/Pages.php
Line: 404
Function: _error_handler

File: /var/www/vhosts/coflow.com.tr/destek.coflow.com.tr/index.php
Line: 316
Function: require_once