error.log

:/opt/nginx/logs# cat error.log 
Error during failsafe response: incompatible character encodings: UTF-8 and ASCII-8BIT
  /www/apptizer/releases/20120229181156/vendor/bundle/ruby/1.9.1/gems/actionpack-3.1.3/lib/action_dispatch/middleware/show_exceptions.rb:131:in `block in log_error'
  /www/apptizer/releases/20120229181156/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.3/lib/active_support/deprecation/reporting.rb:20:in `silence'
  /www/apptizer/releases/20120229181156/vendor/bundle/ruby/1.9.1/gems/actionpack-3.1.3/lib/action_dispatch/middleware/show_exceptions.rb:129:in `log_error'
  /www/apptizer/releases/20120229181156/vendor/bundle/ruby/1.9.1/gems/actionpack-3.1.3/lib/action_dispatch/middleware/show_exceptions.rb:64:in `render_exception'
  /www/apptizer/releases/20120229181156/vendor/bundle/ruby/1.9.1/gems/actionpack-3.1.3/lib/action_dispatch/middleware/show_exceptions.rb:59:in `call'
  /www/apptizer/releases/20120229181156/vendor/bundle/ruby/1.9.1/gems/railties-3.1.3/lib/rails/rack/logger.rb:13:in `call'
  /www/apptizer/releases/20120229181156/vendor/bundle/ruby/1.9.1/gems/rack-1.3.6/lib/rack/methodoverride.rb:24:in `call'
  /www/apptizer/releases/20120229181156/vendor/bundle/ruby/1.9.1/gems/rack-1.3.6/lib/rack/runtime.rb:17:in `call'
  /www/apptizer/releases/20120229181156/vendor/bundle/ruby/1.9.1/gems/activesupport-3.1.3/lib/active_support/cache/strategy/local_cache.rb:72:in `call'
  /www/apptizer/releases/20120229181156/vendor/bundle/ruby/1.9.1/gems/rack-1.3.6/lib/rack/lock.rb:15:in `call'
  /www/apptizer/releases/20120229181156/vendor/bundle/ruby/1.9.1/gems/rack-cache-1.1/lib/rack/cache/context.rb:132:in `forward'
  /www/apptizer/releases/20120229181156/vendor/bundle/ruby/1.9.1/gems/rack-cache-1.1/lib/rack/cache/context.rb:241:in `fetch'
  /www/apptizer/releases/20120229181156/vendor/bundle/ruby/1.9.1/gems/rack-cache-1.1/lib/rack/cache/context.rb:181:in `lookup'
  /www/apptizer/releases/20120229181156/vendor/bundle/ruby/1.9.1/gems/rack-cache-1.1/lib/rack/cache/context.rb:65:in `call!'
  /www/apptizer/releases/20120229181156/vendor/bundle/ruby/1.9.1/gems/rack-cache-1.1/lib/rack/cache/context.rb:50:in `call'
  /www/apptizer/releases/20120229181156/vendor/bundle/ruby/1.9.1/gems/railties-3.1.3/lib/rails/engine.rb:456:in `call'
  /www/apptizer/releases/20120229181156/vendor/bundle/ruby/1.9.1/gems/railties-3.1.3/lib/rails/railtie/configurable.rb:30:in `method_missing'
  /home/apptizer/.rvm/gems/ruby-1.9.3-p125@apptizer3.1/gems/passenger-3.0.11/lib/phusion_passenger/rack/request_handler.rb:96:in `process_request'
  /home/apptizer/.rvm/gems/ruby-1.9.3-p125@apptizer3.1/gems/passenger-3.0.11/lib/phusion_passenger/abstract_request_handler.rb:513:in `accept_and_process_next_request'
  /home/apptizer/.rvm/gems/ruby-1.9.3-p125@apptizer3.1/gems/passenger-3.0.11/lib/phusion_passenger/abstract_request_handler.rb:274:in `main_loop'
  /home/apptizer/.rvm/gems/ruby-1.9.3-p125@apptizer3.1/gems/passenger-3.0.11/lib/phusion_passenger/rack/application_spawner.rb:206:in `start_request_handler'
  /home/apptizer/.rvm/gems/ruby-1.9.3-p125@apptizer3.1/gems/passenger-3.0.11/lib/phusion_passenger/rack/application_spawner.rb:171:in `block in handle_spawn_application'
  /home/apptizer/.rvm/gems/ruby-1.9.3-p125@apptizer3.1/gems/passenger-3.0.11/lib/phusion_passenger/utils.rb:479:in `safe_fork'
  /home/apptizer/.rvm/gems/ruby-1.9.3-p125@apptizer3.1/gems/passenger-3.0.11/lib/phusion_passenger/rack/application_spawner.rb:166:in `handle_spawn_application'
  /home/apptizer/.rvm/gems/ruby-1.9.3-p125@apptizer3.1/gems/passenger-3.0.11/lib/phusion_passenger/abstract_server.rb:357:in `server_main_loop'
  /home/apptizer/.rvm/gems/ruby-1.9.3-p125@apptizer3.1/gems/passenger-3.0.11/lib/phusion_passenger/abstract_server.rb:206:in `start_synchronously'
  /home/apptizer/.rvm/gems/ruby-1.9.3-p125@apptizer3.1/gems/passenger-3.0.11/lib/phusion_passenger/abstract_server.rb:180:in `start'
  /home/apptizer/.rvm/gems/ruby-1.9.3-p125@apptizer3.1/gems/passenger-3.0.11/lib/phusion_passenger/rack/application_spawner.rb:129:in `start'
  /home/apptizer/.rvm/gems/ruby-1.9.3-p125@apptizer3.1/gems/passenger-3.0.11/lib/phusion_passenger/spawn_manager.rb:253:in `block (2 levels) in spawn_rack_application'
  /home/apptizer/.rvm/gems/ruby-1.9.3-p125@apptizer3.1/gems/passenger-3.0.11/lib/phusion_passenger/abstract_server_collection.rb:132:in `lookup_or_add'
  /home/apptizer/.rvm/gems/ruby-1.9.3-p125@apptizer3.1/gems/passenger-3.0.11/lib/phusion_passenger/spawn_manager.rb:246:in `block in spawn_rack_application'
  /home/apptizer/.rvm/gems/ruby-1.9.3-p125@apptizer3.1/gems/passenger-3.0.11/lib/phusion_passenger/abstract_server_collection.rb:82:in `block in synchronize'
  <internal:prelude>:10:in `synchronize'
  /home/apptizer/.rvm/gems/ruby-1.9.3-p125@apptizer3.1/gems/passenger-3.0.11/lib/phusion_passenger/abstract_server_collection.rb:79:in `synchronize'
  /home/apptizer/.rvm/gems/ruby-1.9.3-p125@apptizer3.1/gems/passenger-3.0.11/lib/phusion_passenger/spawn_manager.rb:244:in `spawn_rack_application'
  /home/apptizer/.rvm/gems/ruby-1.9.3-p125@apptizer3.1/gems/passenger-3.0.11/lib/phusion_passenger/spawn_manager.rb:137:in `spawn_application'
  /home/apptizer/.rvm/gems/ruby-1.9.3-p125@apptizer3.1/gems/passenger-3.0.11/lib/phusion_passenger/spawn_manager.rb:275:in `handle_spawn_application'
  /home/apptizer/.rvm/gems/ruby-1.9.3-p125@apptizer3.1/gems/passenger-3.0.11/lib/phusion_passenger/abstract_server.rb:357:in `server_main_loop'
  /home/apptizer/.rvm/gems/ruby-1.9.3-p125@apptizer3.1/gems/passenger-3.0.11/lib/phusion_passenger/abstract_server.rb:206:in `start_synchronously'
  /usr/share/phusion-passenger/helper-scripts/passenger-spawn-server:99:in `<main>'