A PHP Error was encountered

Severity: Notice

Message: Trying to get property of non-object

Filename: models/Site_model.php

Line Number: 13

Backtrace:

File: /home/agatpol/domains/agatpol.pl/public_html/application/modules/home/models/Site_model.php
Line: 13
Function: _error_handler

File: /home/agatpol/domains/agatpol.pl/public_html/application/modules/home/controllers/Site.php
Line: 44
Function: getart

File: /home/agatpol/domains/agatpol.pl/public_html/index.php
Line: 317
Function: require_once