A PHP Error was encountered

Severity: Notice

Message: Undefined index: HTTP_REFERER

Filename: controllers/Welcome.php

Line Number: 60

Backtrace:

File: /homepages/3/d348208151/htdocs/ecbpmbooks/application/controllers/Welcome.php
Line: 60
Function: _error_handler

File: /homepages/3/d348208151/htdocs/ecbpmbooks/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 /homepages/3/d348208151/htdocs/ecbpmbooks/system/core/Exceptions.php:271)

Filename: helpers/url_helper.php

Line Number: 564

Backtrace:

File: /homepages/3/d348208151/htdocs/ecbpmbooks/application/controllers/Welcome.php
Line: 60
Function: redirect

File: /homepages/3/d348208151/htdocs/ecbpmbooks/index.php
Line: 315
Function: require_once