error en la ultima pagina del pago (no tengo idea de que hacer)

[Kimetzzenitagoia]

ESte es el error. Alguien me puede ayudar?

Fatal error: Uncaught Error: Call to undefined function proc_open() in /var/www/vhosts/38775853.servicio-online.net/durangaldekomusika.com/MusikaGu/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/StreamBuffer.php:291 Stack trace: #0 /var/www/vhosts/38775853.servicio-online.net/durangaldekomusika.com/MusikaGu/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/StreamBuffer.php(54): Swift_Transport_StreamBuffer->establishProcessConnection() #1 /var/www/vhosts/38775853.servicio-online.net/durangaldekomusika.com/MusikaGu/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php(143): Swift_Transport_StreamBuffer->initialize(Array) #2 /var/www/vhosts/38775853.servicio-online.net/durangaldekomusika.com/MusikaGu/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/SendmailTransport.php(50): Swift_Transport_AbstractSmtpTransport->start() #3 /var/www/vhosts/38775853.servicio-online.net/durangaldekomusika.com/MusikaGu/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Mailer.php(65): Swift_Transport_SendmailTransport->start() #4 /var/www/vhosts/38775853.servicio-online.net/durangaldekomusika.com/MusikaGu/classes/Mail.php(636): Swift_Mailer->send(Object(Swift_Message)) #5 /var/www/vhosts/38775853.servicio-online.net/durangaldekomusika.com/MusikaGu/classes/PaymentModule.php(721): MailCore::send(3, 'order_conf', '[Musika=Gu] Esk...', Array, 'kimetzzenitagoi...', '=?UTF-8?B?S2ltZ...', 'denda@zenitagoi...', NULL, NULL, NULL, '/var/www/vhosts...', false, 1) #6 /var/www/vhosts/38775853.servicio-online.net/durangaldekomusika.com/MusikaGu/modules/ps_cashondelivery/controllers/front/validation.php(74): PaymentModuleCore->validateOrder(16, 13, 15.0, 'Jasotzean ordai...', NULL, Array, 2, false, '0177f63af520fcf...') #7 /var/www/vhosts/38775853.servicio-online.net/durangaldekomusika.com/MusikaGu/classes/controller/Controller.php(308): Ps_CashondeliveryValidationModuleFrontController->postProcess() #8 /var/www/vhosts/38775853.servicio-online.net/durangaldekomusika.com/MusikaGu/classes/Dispatcher.php(510): ControllerCore->run() #9 /var/www/vhosts/38775853.servicio-online.net/durangaldekomusika.com/MusikaGu/index.php(28): DispatcherCore->dispatch() #10 {main} thrown in /var/www/vhosts/38775853.servicio-online.net/durangaldekomusika.com/MusikaGu/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/StreamBuffer.php on line 291

[juanrojas]

escribe a tu servidor y diles para habilitar proc_open o intenta configurar el envío de correos electrónicos a través de SMTP

[Knowband Plugins]

La función proc_open está deshabilitada en PHP.ini desde el servidor.

Asegúrese de habilitar las funciones proc_open y proc_close.