Well, it seems I forgot to add the acts_as_authenticated to the repository on my...

[selectricity-live] / vendor / plugins / acts_as_authenticated / generators / authenticated_mailer / templates / signup_notification.rhtml

Your account has been created.

  Username: <%%= @<%= file_name %>.login %>
  Password: <%%= @<%= file_name %>.password %>

Visit this url to activate your account:

  <%%= @url %>