A PHP Error was encountered

Severity: Notice

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

Filename: controllers/Penyedia.php

Line Number: 28

Backtrace:

File: /var/www/html/application/controllers/Penyedia.php
Line: 28
Function: _error_handler

File: /var/www/html/index.php
Line: 324
Function: require_once