A PHP Error was encountered

Severity: Notice

Message: Undefined index: HTTP_REFERER

Filename: controllers/U.php

Line Number: 124

Backtrace:

File: /home/autobtcbuilder/public_html/application/controllers/U.php
Line: 124
Function: _error_handler

File: /home/autobtcbuilder/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

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

Filename: controllers/U.php

Line Number: 126

Backtrace:

File: /home/autobtcbuilder/public_html/application/controllers/U.php
Line: 126
Function: header

File: /home/autobtcbuilder/public_html/index.php
Line: 315
Function: require_once