Severity: Notice
Message: Undefined index: HTTP_USER_AGENT
Filename: libraries/Mylibrary.php
Line Number: 147
Backtrace:
File: /home/fakultas/public_html/application/libraries/Mylibrary.php
Line: 147
Function: _error_handler
File: /home/fakultas/public_html/index.php
Line: 294
Function: require_once
