Severity: Warning
Message: Undefined array key "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
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