A PHP Error was encountered

Severity: Notice

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

Filename: public/master.php

Line Number: 3

Backtrace:

File: /www/htdocs/w01a04da/sununitedhair.de/application/views/public/master.php
Line: 3
Function: _error_handler

File: /www/htdocs/w01a04da/sununitedhair.de/application/controllers/Page.php
Line: 38
Function: view

File: /www/htdocs/w01a04da/sununitedhair.de/index.php
Line: 315
Function: require_once