A PHP Error was encountered

Severity: Notice

Message: Undefined index: HTTP_ACCEPT_LANGUAGE

Filename: models/Lang_model.php

Line Number: 54

Backtrace:

File: /home/microtek/public_html/application/models/Lang_model.php
Line: 54
Function: _error_handler

File: /home/microtek/public_html/application/models/Lang_model.php
Line: 31
Function: accept_language

File: /home/microtek/public_html/application/core/Base_Controller.php
Line: 130
Function: get_lang

File: /home/microtek/public_html/application/core/Base_Controller.php
Line: 69
Function: process_lang

File: /home/microtek/public_html/application/controllers/Product.php
Line: 9
Function: __construct

File: /home/microtek/public_html/index.php
Line: 315
Function: require_once