A PHP Error was encountered

Severity: Notice

Message: Undefined variable: msg_proxy

Filename: libraries/Firewall.php

Line Number: 25

Backtrace:

File: /home/tramquantrac/public_html/application/libraries/Firewall.php
Line: 25
Function: _error_handler

File: /home/tramquantrac/public_html/application/libraries/Firewall.php
Line: 101
Function: load

File: /home/tramquantrac/public_html/application/core/MY_Controller.php
Line: 11
Function: open

File: /home/tramquantrac/public_html/index.php
Line: 306
Function: require_once