giboon mailchimp 404 error

I am using the ROR Gem Gibonn by Amro for integration with mailchimp. I have followed the how-to at http://ift.tt/1mOZGRi. When I attempt to add a new subscriber I receive a 404 error "ResourceNotFound". Thing is I am not sure what "Resource" is not found.

Here is my _form.html.erb

<%= form_tag('/emailapi/subscribe', method: "post", id: "subscribe") do -%>
   <%= text_field(:FNAME, :fname, { placeholder: "First Name"}) %>
   <%= text_field(:LNAME, :lname, { placeholder: "Last Name"}) %>
   <%= email_field(:email, :email_address, { placeholder: "Email Address"}) %>
   <%= submit_tag("Sign me up!") %>

<% end %>`

Here is my emailapi_controller.rb

class EmailapiController < ApplicationController
def index
end

def subscribe
    @list_id = "3ea2e9a0c8"
    gb = Gibbon::Request.new

    gb.lists(:list_id).members.create(body: {
                                        email_address: "email_address",
                                        status: "subscribed",
                                        merge_fields: {
                                                        FNAME: "fname",
                                                        LNAME: "lname"
                                                        }
                                        })


   flash[:success] = "Thank you for pay-it-forward.
   You are now added to our email list."
   redirect_to '/'
end

end