A PHP Error was encountered

Severity: Notice

Message: Undefined index: HTTP_REFERER

Filename: controllers/Home.php

Line Number: 112

Backtrace:

File: /home/prego/domains/prego123.com.my/public_html/application/controllers/Home.php
Line: 112
Function: _error_handler

File: /home/prego/domains/prego123.com.my/public_html/index.php
Line: 292
Function: require_once