A PHP Error was encountered

Severity: Notice

Message: Undefined index: HTTP_REFERER

Filename: controllers/Sammelanfrage.php

Line Number: 299

Backtrace:

File: /homepages/0/d73367470/htdocs/coronakonform/application/controllers/Sammelanfrage.php
Line: 299
Function: _error_handler

File: /homepages/0/d73367470/htdocs/coronakonform/index.php
Line: 320
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at /homepages/0/d73367470/htdocs/coronakonform/system/core/Exceptions.php:271)

Filename: helpers/url_helper.php

Line Number: 564

Backtrace:

File: /homepages/0/d73367470/htdocs/coronakonform/application/controllers/Sammelanfrage.php
Line: 299
Function: redirect

File: /homepages/0/d73367470/htdocs/coronakonform/index.php
Line: 320
Function: require_once