A PHP Error was encountered

Severity: Notice

Message: Undefined variable: cat

Filename: frontend/product.php

Line Number: 5

Backtrace:

File: /home/dailoc/domains/dailoc.vietcorp.top/public_html/application/views/frontend/product.php
Line: 5
Function: _error_handler

File: /home/dailoc/domains/dailoc.vietcorp.top/public_html/application/controllers/Product.php
Line: 29
Function: view

File: /home/dailoc/domains/dailoc.vietcorp.top/public_html/index.php
Line: 316
Function: require_once