A PHP Error was encountered

Severity: Notice

Message: Trying to access array offset on value of type null

Filename: controllers/Struktur.php

Line Number: 24

Backtrace:

File: /var/www/html/application/modules/site/controllers/Struktur.php
Line: 24
Function: _error_handler

File: /var/www/html/index.php
Line: 316
Function: require_once

A PHP Error was encountered

Severity: Notice

Message: Trying to access array offset on value of type null

Filename: controllers/Struktur.php

Line Number: 27

Backtrace:

File: /var/www/html/application/modules/site/controllers/Struktur.php
Line: 27
Function: _error_handler

File: /var/www/html/index.php
Line: 316
Function: require_once