Mấy anh ơi? Giúp em với

Cho em hỏi lỗi này khắc phục như thế nào z?

Mã:

Server Error
Undefined variable: errno
XenForo_Application::handlePhpError() in Zend/Http/Client/Adapter/Socket.php at line 236
Zend_Http_Client_Adapter_Socket->connect() in Zend/Http/Client.php at line 973
Zend_Http_Client->request() in Zend/Service/ReCaptcha.php at line 487
Zend_Service_ReCaptcha->_post() in Zend/Service/ReCaptcha.php at line 502
Zend_Service_ReCaptcha->verify() in XenForo/Captcha/ReCaptcha.php at line 53
XenForo_Captcha_ReCaptcha->isValid() in XenForo/Captcha/Abstract.php at line 128
XenForo_Captcha_Abstract::validateDefault() in XenForo/ControllerPublic/Register.php at line 164
XenForo_ControllerPublic_Register->actionRegister() in XenForo/FrontController.php at line 310
XenForo_FrontController->dispatch() in XenForo/FrontController.php at line 132
XenForo_FrontController->run() in /home/vol15/byethost33.com/b33_11982220/htdocs/forum/index.php at line 13

 

cái này chờ cao nhân thui, mình chịu

 

http://students-vn.com/threads/admin-va-cao-thu-giup-em-cai-nay-voi.1267/

 

Lỗi này chắc do bạn chưa add thư viện Recaptcha. Bạn kiểm tra lại nhé.