help I can't pay for the hamachi service

I ask you for help, please, when I want to pay for the service, it refers me to goto admin but the web or my user does not work. I wait for an answer, thank you very much !!!

Les pido ayuda por favor, al querer abonar el servicio me deriva a goto admin pero no funciona la web o mi usuario. espero respuesta, muchas gracias !!!