A PHP Error was encountered

Severity: Notice

Message: Undefined index: lang

Filename: controllers/Store.php

Line Number: 38

Backtrace:

File: E:\xampp\htdocs\fermos\b2b_application\public\controllers\Store.php
Line: 38
Function: _error_handler

File: E:\xampp\htdocs\fermos\index.php
Line: 320
Function: require_once