A PHP Error was encountered

Severity: Notice

Message: Undefined index: HTTP_REFERER

Filename: controllers/Home.php

Line Number: 1668

Backtrace:

File: /home/vatrenacom/public_html/application/controllers/Home.php
Line: 1668
Function: _error_handler

File: /home/vatrenacom/public_html/index.php
Line: 316
Function: require_once