A PHP Error was encountered

Severity: Notice

Message: Trying to get property of non-object

Filename: blocks/sorting_design.php

Line Number: 4

Backtrace:

File: /var/www/plast393/public_html/oldy/application/views/blocks/sorting_design.php
Line: 4
Function: _error_handler

File: /var/www/plast393/public_html/oldy/application/views/design.php
Line: 6
Function: view

File: /var/www/plast393/public_html/oldy/application/views/blocks/layout.php
Line: 10
Function: view

File: /var/www/plast393/public_html/oldy/application/controllers/Magazin.php
Line: 74
Function: view

File: /var/www/plast393/public_html/oldy/index.php
Line: 315
Function: require_once