A PHP Error was encountered

Severity: Notice

Message: Undefined index: HTTP_REFERER

Filename: controllers/Language.php

Line Number: 15

Backtrace:

File: /home/hljxyz/public_html/hy_app/controllers/Language.php
Line: 15
Function: _error_handler

File: /home/hljxyz/public_html/index.php
Line: 142
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at /home/hljxyz/public_html/hy_sys/core/Exceptions.php:272)

Filename: helpers/url_helper.php

Line Number: 564

Backtrace:

File: /home/hljxyz/public_html/hy_app/controllers/Language.php
Line: 15
Function: redirect

File: /home/hljxyz/public_html/index.php
Line: 142
Function: require_once