A PHP Error was encountered

Severity: Notice

Message: Undefined index: HTTP_ACCEPT_LANGUAGE

Filename: controllers/main.php

Line Number: 31

A PHP Error was encountered

Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at D:\codeigniter\core-2.1.4-2014\core\Exceptions.php:185)

Filename: helpers/url_helper.php

Line Number: 542