A PHP Error was encountered

Severity: Notice

Message: Undefined variable: msg_proxy

Filename: libraries/Firewall.php

Line Number: 25

Backtrace:

File: /var/www/vhosts/trainghiem.top/raovat.trainghiem.top/application/libraries/Firewall.php
Line: 25
Function: _error_handler

File: /var/www/vhosts/trainghiem.top/raovat.trainghiem.top/application/libraries/Firewall.php
Line: 101
Function: load

File: /var/www/vhosts/trainghiem.top/raovat.trainghiem.top/application/core/MY_Controller.php
Line: 10
Function: open

File: /var/www/vhosts/trainghiem.top/raovat.trainghiem.top/application/controllers/Vindex.php
Line: 8
Function: __construct

File: /var/www/vhosts/trainghiem.top/raovat.trainghiem.top/index.php
Line: 329
Function: require_once