A PHP Error was encountered

Severity: Notice

Message: Undefined index: HTTP_REFERER

Filename: controllers/Special.php

Line Number: 134

Backtrace:

File: D:\WEB_51TTYY\WWW\home\controllers\Special.php
Line: 134
Function: _error_handler

File: D:\WEB_51TTYY\WWW\index.php
Line: 292
Function: require_once

/*wrong visit*/