Rails - MissingTemplate occurred in controller#action
===

I have following scheme:

click on this link

    = link_to 'Ping', {:controller => 'articles', :action => 'info_form', :to_article => @article.id}

go to ArticlesController

      def info_form
        @info = current_user unless current_user.nil?
        @to_article_id = Article.find(params[:to_article])
    
        respond_to do |format|
          format.html {}
          format.js 
         end
      end  

then is called `articles/info_form.js.haml`

    $('#article_form').html("#{escape_javascript(render('info'))}");
    $('#article_form_window').modal('toggle');

and `_info.html.haml`

    here is a form

This is the flow of actions in my app and it's working great.
But in the production, several times a day I am getting this error messages:

    A ActionView::MissingTemplate occurred in articles#info_form: 
    
    Missing template articles/info_form, application/info_form with

In the log is following:

    Request: 
    * URL : http://web.com/articles/info_form?to_article=37
    * HTTP_FROM : googlebot(at)googlebot.com
    * HTTP_USER_AGENT : Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)


The URL which gives this errors is the URL, which is visited by google bot. How can I fix this error? Because, the problematic URL is not clickable for the "usual" users, giving the error just that time, when Google bot visit it...