Error trace

/var/lib/gems/1.8/gems/activesupport-2.3.2/lib/active_support/vendor/i18n-0.1.3/lib/i18n/backend/simple.rb:103:in `[]'
/var/lib/gems/1.8/gems/activesupport-2.3.2/lib/active_support/vendor/i18n-0.1.3/lib/i18n/backend/simple.rb:103:in `lookup'
/var/lib/gems/1.8/gems/activesupport-2.3.2/lib/active_support/vendor/i18n-0.1.3/lib/i18n/backend/simple.rb:102:in `each'
/var/lib/gems/1.8/gems/activesupport-2.3.2/lib/active_support/vendor/i18n-0.1.3/lib/i18n/backend/simple.rb:102:in `inject'
/var/lib/gems/1.8/gems/activesupport-2.3.2/lib/active_support/vendor/i18n-0.1.3/lib/i18n/backend/simple.rb:102:in `lookup'
/var/lib/gems/1.8/gems/activesupport-2.3.2/lib/active_support/vendor/i18n-0.1.3/lib/i18n/backend/simple.rb:33:in `translate'
/var/lib/gems/1.8/gems/activesupport-2.3.2/lib/active_support/vendor/i18n-0.1.3/lib/i18n.rb:165:in `translate'
/home/nia/Documents/Coding/ruby/rails/students/app/views/loads/show.html.erb:17:in `_run_erb_app47views47loads47show46html46erb'
/usr/lib/ruby/1.8/benchmark.rb:308:in `realtime'
/home/nia/Documents/Coding/ruby/rails/students/vendor/gems/josevalim-inherited_resources-0.8.2/lib/inherited_resources/respond_to.rb:150:in `respond_with'
/home/nia/Documents/Coding/ruby/rails/students/vendor/gems/josevalim-inherited_resources-0.8.2/lib/inherited_resources/respond_to.rb:139:in `each'
/home/nia/Documents/Coding/ruby/rails/students/vendor/gems/josevalim-inherited_resources-0.8.2/lib/inherited_resources/respond_to.rb:139:in `respond_with'
/home/nia/Documents/Coding/ruby/rails/students/vendor/gems/josevalim-inherited_resources-0.8.2/lib/inherited_resources/respond_to.rb:240:in `respond_to'
/home/nia/Documents/Coding/ruby/rails/students/vendor/gems/josevalim-inherited_resources-0.8.2/lib/inherited_resources/actions.rb:15:in `show'
/usr/lib/ruby/1.8/benchmark.rb:308:in `realtime'
/var/lib/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/dispatcher.rb:88:in `dispatch'
/var/lib/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/dispatcher.rb:111:in `_call'
/var/lib/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/dispatcher.rb:82:in `initialize'
/var/lib/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/head.rb:9:in `call'
/var/lib/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/methodoverride.rb:24:in `call'
/var/lib/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/lock.rb:11:in `call'
/var/lib/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/lock.rb:11:in `synchronize'
/var/lib/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/lock.rb:11:in `call'
/var/lib/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/dispatcher.rb:106:in `call'
/var/lib/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/urlmap.rb:46:in `call'
/var/lib/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/urlmap.rb:40:in `each'
/var/lib/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/urlmap.rb:40:in `call'
/var/lib/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/content_length.rb:13:in `call'
/var/lib/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/handler/webrick.rb:46:in `service'
/usr/lib/ruby/1.8/webrick/httpserver.rb:104:in `service'
/usr/lib/ruby/1.8/webrick/httpserver.rb:65:in `run'
/usr/lib/ruby/1.8/webrick/server.rb:173:in `start_thread'
/usr/lib/ruby/1.8/webrick/server.rb:162:in `start'
/usr/lib/ruby/1.8/webrick/server.rb:162:in `start_thread'
/usr/lib/ruby/1.8/webrick/server.rb:95:in `start'
/usr/lib/ruby/1.8/webrick/server.rb:92:in `each'
/usr/lib/ruby/1.8/webrick/server.rb:92:in `start'
/usr/lib/ruby/1.8/webrick/server.rb:23:in `start'
/usr/lib/ruby/1.8/webrick/server.rb:82:in `start'
/var/lib/gems/1.8/gems/actionpack-2.3.2/lib/action_controller/vendor/rack-1.0/rack/handler/webrick.rb:13:in `run'
/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `require'
script/server:3