A PHP Error was encountered

Severity: Notice

Message: Undefined variable: current_lang_id

Filename: hooks/Lang_hook.php

Line Number: 39

Backtrace:

File: /var/www/html/randevuonline/application/hooks/Lang_hook.php
Line: 39
Function: _error_handler

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