Rails crash with ClientSideValidation gem about localeapp HOT 11 CLOSED

$ rails s
=> Booting WEBrick
=> Rails 3.1.1 application starting in development on http://0.0.0.0:3000
=> Call with -d to detach
=> Ctrl-C to shutdown server
[2011-12-12 14:34:52] INFO  WEBrick 1.3.1
[2011-12-12 14:34:52] INFO  ruby 1.9.2 (2011-07-09) [x86_64-darwin11.2.0]
[2011-12-12 14:34:52] INFO  WEBrick::HTTPServer#start: pid=2774 port=3000

Illegal instruction: 4

SystemStackError in AdultsController#registration

stack level too deep
Rails.root: /home/xubuntu/_www/admin-mela

Application Trace | Framework Trace | Full Trace
actionpack (3.1.1) lib/action_dispatch/middleware/reloader.rb:73

= simple_form_for @adult, :validate => true, :remote => true, :url => { :action => "registration_create" }, :html => {:class => "nice"} do |f|
  = f.error_messages
  %hr
  %H4= t(:profil, :scope => :registration)
  .row 

    .six.columns
      = f.input :spirit_name, :input_html => {:class => "input-text"}
      = f.input :firstname, :input_html => {:class => "input-text"}
      = f.input :lastname, :input_html => {:class => "input-text"}
      = f.input :email, :as => :email, :input_html => {:class => "input-text"}

    .six.columns
      = f.input :sex, :include_blank => false, :collection => {t(:male, :scope => :registration) => "m", t(:female, :scope => :registration) => "f"}
      = f.input :birth_date, :as => :date, :start_year => Date.today.year - 110,
                                        :end_year => Date.today.year - 18,
                                        :order => [:day ,:month, :year]
      = f.input :job, :input_html => {:class => "input-text"}
    %hr
    %H4= t(:adress, :scope => :registration)
    .row
      .six.columns
        = f.input :numer_street, :input_html => {:class => "input-text small"}

        = f.input :city, :input_html => {:class => "input-text"}


      .six.columns

        = f.input :street, :input_html => {:class => "input-text"}

        = f.input :country, :as => :country

        = f.input :post, :input_html => {:class => "input-text small"}

        = f.hidden_field :languge, :value => locale


    %hr
    %H4= t(:service_kirtana_mela, :scope => :registration)
    .row
      .columns.three
        = f.input :service, :label => t(:some_service, :scope => :registration), :as => :select, :collection => [I18n.t(:yes, :scope => :registration), I18n.t(:no, :scope => :registration)], :label_html => { :class => 'my_class' }, :class => 'my_class'
      .columns.three
        .manyhours
          = f.input :servise_time, :label => t(:hours_service, :scope => :registration), :input_html => {:class => "input-text small", :value => '0'}

    %hr
    %H4= t(:tarif, :scope => :registration)
    .row
      .columns.four       
        = f.input :status_tariff_id, :include_blank => false, :collection => @tarifs.collect {|s| [s.name+" ("+s.tarif.to_s+" €)", s.id]}, :input_html => {:class => "input-text small"}

      .columns.four

        .certificate
          = f.input :upload, :as => :file, :input_html => {:class => "file-form"}
      .columns.four
        %p.certificate
          =t(:certificate_details, :scope => :registration)

    %hr
    %H4= t(:kids, :scope => :registration)
    .row
      .columns.twelve
        %p
          = t(:kids_details, :scope => :registration)
    .row
      .columns.twelve.listkids

        = f.simple_fields_for :kids do |builder|
          = render :partial => 'kid_fields', :locals => { :f => builder }
        %p
          #{link_to_add_fields(t(:add_kids, :scope => :registration), f, :kids).html_safe}
    %hr
    .row
      .columns.twelve
        %p
          = t(:agree_form, :scope => :registration)
        %p.center
          = f.submit :class => "orange nice radius button", :value => t(:submit_form, :scope => :registration)
          %span.loader
            = image_tag("ajax-loader.gif")