A PHP Error was encountered

Severity: Warning

Message: Undefined array key "HTTP_REFERER"

Filename: controllers/Main.php

Line Number: 116

Backtrace:

File: /home/negodai/test.negodai.com/app/controllers/Main.php
Line: 116
Function: _error_handler

File: /home/negodai/test.negodai.com/index.php
Line: 302
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at /home/negodai/test.negodai.com/system/core/Exceptions.php:272)

Filename: helpers/url_helper.php

Line Number: 565

Backtrace:

File: /home/negodai/test.negodai.com/app/controllers/Main.php
Line: 116
Function: redirect

File: /home/negodai/test.negodai.com/index.php
Line: 302
Function: require_once