A PHP Error was encountered

Severity: Notice

Message: Undefined index: HTTP_REFERER

Filename: controllers/Mains.php

Line Number: 63

Backtrace:

File: /home/web/vm-d9abeb64.na4u.ru/www/application/frontend/controllers/Mains.php
Line: 63
Function: _error_handler

File: /home/web/vm-d9abeb64.na4u.ru/www/index.php
Line: 318
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at /home/web/vm-d9abeb64.na4u.ru/www/system/core/Exceptions.php:272)

Filename: helpers/url_helper.php

Line Number: 565

Backtrace:

File: /home/web/vm-d9abeb64.na4u.ru/www/application/frontend/controllers/Mains.php
Line: 63
Function: redirect

File: /home/web/vm-d9abeb64.na4u.ru/www/index.php
Line: 318
Function: require_once