A PHP Error was encountered

Severity: Notice

Message: Undefined index: HTTP_ACCEPT_LANGUAGE

Filename: controllers/Pages.php

Line Number: 17

Backtrace:

File: /var/www/front-explora/application_frnt/controllers/Pages.php
Line: 17
Function: _error_handler

File: /var/www/front-explora/index.php
Line: 325
Function: require_once