A PHP Error was encountered

Severity: Notice

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

Filename: controllers/Download.php

Line Number: 18

Backtrace:

File: /usr/home/szybkinet1/domains/alfanet24.pl/public_html/application/controllers/Download.php
Line: 18
Function: _error_handler

File: /usr/home/szybkinet1/domains/alfanet24.pl/public_html/index.php
Line: 315
Function: require_once