You must have reached this page because your .es domain does not have your email address in the administrative contact.
If you are the domain holder or the person who manages it, you can request the amendment of the email of the administrative contact from your current registrar.
Typically, your registrar has a dashboard. You will need to access your dashboard and modify the administrative contact by putting an email account that you can access.
If you do not have a dashboard in the registrar, you should contact them to find out what procedure to be followed for such modifications.