QVC medical appointment letter problem

Sir when I tried to book an appointment for Medical with QVC after providing a passport and visa details and captcha.I click submit then it displays a message showing (SOME EXCEPTION OCCURRED PLEASE CONTACT ADMINISTRATOR ) PLEASE ADVICE HOW TO PROCEED FURTHER

Contact QVC to get this error rectified or if you need to make any changes in the QVC medical appointment request then ask your employer or if you individual trying to change then QVC.