A PHP Error was encountered

Severity: Notice

Message: Undefined index: HTTP_ACCEPT_LANGUAGE

Filename: models/Language_model.php

Line Number: 17

Backtrace:

File: /var/www/html/database_hr/application/models/Language_model.php
Line: 17
Function: _error_handler

File: /var/www/html/database_hr/application/core/MY_Controller.php
Line: 21
Function: language

File: /var/www/html/database_hr/application/controllers/Applicants_front.php
Line: 19
Function: __construct

File: /var/www/html/database_hr/index.php
Line: 292
Function: require_once