Missing current_language method

I am using ExceptionNotification 3.0.1 for Rails 3.2.8 and ruby ​​1.9.3 I have these lines in production.rb:

  config.middleware.use ExceptionNotifier,
      :ignore_exceptions => [],
      :ignore_crawlers => %w{Googlebot bingbot},
      :email_prefix => '[Error]',
      :sender_address => 'system@XX.XX',
      :exception_recipients => %w{XX@XX.com},
      :sections => ExceptionNotifier::Notifier.default_sections + %w{system_error}

      

        
        
        
      

    

But I am getting this error:

NoMethodError (undefined method `current_language' for #<ExceptionNotifier::Notifier:

      

        
        
        
      

    

Any help would be appreciated