A PHP Error was encountered

Severity: Notice

Message: Trying to get property 'st_tresc' of non-object

Filename: controllers/Strony.php

Line Number: 25

Backtrace:

File: /home/domeny/komancza.pl/public_html/application/controllers/Strony.php
Line: 25
Function: _error_handler

File: /home/domeny/komancza.pl/public_html/index.php
Line: 315
Function: require_once