A PHP Error was encountered

Severity: Notice

Message: Undefined index: HTTP_REFERER

Filename: controllers/Main.php

Line Number: 85

Backtrace:

File: /home/kapp119/public_html/dev/application/controllers/Main.php
Line: 85
Function: _error_handler

File: /home/kapp119/public_html/dev/index.php
Line: 325
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at /home/kapp119/public_html/dev/vendor/codeigniter/framework/system/core/Exceptions.php:271)

Filename: controllers/Main.php

Line Number: 102

Backtrace:

File: /home/kapp119/public_html/dev/application/controllers/Main.php
Line: 102
Function: header

File: /home/kapp119/public_html/dev/index.php
Line: 325
Function: require_once