A PHP Error was encountered

Severity: Notice

Message: Undefined offset: 0

Filename: models/Product_project_model.php

Line Number: 115

Backtrace:

File: /home/lattice/public_html/chiyu-cylinder.com.tw/application/models/Product_project_model.php
Line: 115
Function: _error_handler

File: /home/lattice/public_html/chiyu-cylinder.com.tw/application/controllers/IndexProduct.php
Line: 51
Function: getFieldById

File: /home/lattice/public_html/chiyu-cylinder.com.tw/index.php
Line: 294
Function: require_once