A PHP Error was encountered

Severity: Notice

Message: Undefined index: captcha

Filename: controllers/Registrazione.php

Line Number: 42

Backtrace:

File: /var/www/vhosts/plesk.abbonamenti.unicocampania.it/abbonamenti.unicocampania.it/application/controllers/Registrazione.php
Line: 42
Function: _error_handler

File: /var/www/vhosts/plesk.abbonamenti.unicocampania.it/abbonamenti.unicocampania.it/index.php
Line: 315
Function: require_once