A PHP Error was encountered

Severity: Notice

Message: Undefined index: HTTP_REFERER

Filename: controllers/Publics.php

Line Number: 22

Backtrace:

File: /home/tnsmart/tnsmart/application/controllers/Publics.php
Line: 22
Function: _error_handler

File: /home/tnsmart/tnsmart/index.php
Line: 316
Function: require_once