NoMethodError in <controller not set>#<action not set> 

undefined method `[]' for nil:NilClass

RAILS_ROOT: /var/www/reso-shop/config/..

Application Trace | Framework Trace | Full Trace 
#{RAILS_ROOT}/app/controllers/application.rb:373:in `site'
#{RAILS_ROOT}/app/controllers/application.rb:738:in `rescue_action_in_public'
/usr/bin/mongrel_rails:18

Request

Parameters: {"id"=>"3437"}

Show session dump

Response

Headers: {"cookie"=>[], "Cache-Control"=>"no-cache"}