I resolve this problem using the confirmation without CAPTCHA but:
In registrer when the user don`t write some thinks appears:
[Icy Phoenix Debug] PHP Notice: in file /includes/usercp_register.php on line 559: htmlspecialchars() expects parameter 1 to be string, array given
[Icy Phoenix Debug] PHP Notice: in file /includes/page_header.php on line 1196: Cannot modify header information - headers already sent by (output started at /includes/functions.php:2016)
[Icy Phoenix Debug] PHP Notice: in file /includes/page_header.php on line 1202: Cannot modify header information - headers already sent by (output started at /includes/functions.php:2016)
[Icy Phoenix Debug] PHP Notice: in file /includes/page_header.php on line 1203: Cannot modify header information - headers already sent by (output started at /includes/functions.php:2016)
How i can do not to appear this errors because the user can register.
A lot of thanks.