A PHP Error was encountered

Severity: Notice

Message: Undefined index: subName

Filename: controllers/Product.php

Line Number: 94

Backtrace:

File: /home/baisheng/public_html/application/controllers/Product.php
Line: 94
Function: _error_handler

File: /home/baisheng/public_html/index.php
Line: 316
Function: require_once