A PHP Error was encountered

Severity: Notice

Message: Undefined index: HTTP_REFERER

Filename: controllers/User.php

Line Number: 479

Backtrace:

File: /home/btlxjdkb/domains/myaajkal.xyz/public_html/application/controllers/User.php
Line: 479
Function: _error_handler

File: /home/btlxjdkb/domains/myaajkal.xyz/public_html/index.php
Line: 308
Function: require_once