A PHP Error was encountered

Severity: Notice

Message: Undefined index: HTTP_REFERER

Filename: controllers/Main.php

Line Number: 16

Backtrace:

File: /home/unlimit1/public_html/mine-surveying.mn/application/controllers/Main.php
Line: 16
Function: _error_handler

File: /home/unlimit1/public_html/mine-surveying.mn/index.php
Line: 294
Function: require_once