A PHP Error was encountered

Severity: Notice

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

Filename: controllers/Artikel.php

Line Number: 94

Backtrace:

File: /var/www/html/application/controllers/Artikel.php
Line: 94
Function: _error_handler

File: /var/www/html/index.php
Line: 315
Function: require_once