PHP Error was encountered

Severity: Warning

Message: Use of undefined constant error_404 - assumed 'error_404' (this will throw an Error in a future version of PHP)

Filename: controllers/Content_hukum.php

Line Number: 252

Backtrace:

File: /var/www/html/application/modules/content_hukum/controllers/Content_hukum.php
Line: 252
Function: _error_handler

File: /var/www/html/index.php
Line: 292
Function: require_once