Ruby on Rails application could not be started (via Mowser)

There appears to be a database problem.

Your config/database.yml may not be written correctly. Please check it and fix any errors.

Your database schema may be out of date or nonexistant. Please run rake db:migrate to ensure that the database schema is up-to-date.

The database server may not be running. Please check whether it's running, and start it if it isn't.

Error message:: yigal_staging database is not configured (ActiveRecord::AdapterNotSpecified)
Exception class:: ActiveRecord::AdapterNotSpecified
Application root:: /var/www/apps/restful_ecomm/current
Backtrace:: # File Line Location

0 /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_specification.rb 62 in `establish_connection'

1 /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/connection_adapters/abstract/connection_specification.rb 55 in `establish_connection'

2 /usr/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/initializer.rb 417 in `initialize_database'

3 /usr/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/initializer.rb 141 in `process'

4 /usr/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/initializer.rb 113 in `send'

5 /usr/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/initializer.rb 113 in `run'

6 /var/www/apps/restful_ecomm/releases/20111223180759/config/environment.rb 10

7 /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb 31 in `gem_original_require'

8 /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb 31 in `require'

9 /usr/lib/ruby/gems/1.8/gems/passenger-2.2.9/lib/phusion_passenger/railz/application_spawner.rb 299 in `preload_application'

10 /usr/lib/ruby/gems/1.8/gems/passenger-2.2.9/lib/phusion_passenger/railz/application_spawner.rb 248 in `initialize_server'

11 /usr/lib/ruby/gems/1.8/gems/passenger-2.2.9/lib/phusion_passenger/utils.rb 255 in `report_app_init_status'

12 /usr/lib/ruby/gems/1.8/gems/passenger-2.2.9/lib/phusion_passenger/railz/application_spawner.rb 233 in `initialize_server'

13 /usr/lib/ruby/gems/1.8/gems/passenger-2.2.9/lib/phusion_passenger/abstract_server.rb 194 in `start_synchronously'

14 /usr/lib/ruby/gems/1.8/gems/passenger-2.2.9/lib/phusion_passenger/abstract_server.rb 163 in `start'

15 /usr/lib/ruby/gems/1.8/gems/passenger-2.2.9/lib/phusion_passenger/railz/application_spawner.rb 209 in `start'

16 /usr/lib/ruby/gems/1.8/gems/passenger-2.2.9/lib/phusion_passenger/spawn_manager.rb 262 in `spawn_rails_application'

17 /usr/lib/ruby/gems/1.8/gems/passenger-2.2.9/lib/phusion_passenger/abstract_server_collection.rb 126 in `lookup_or_add'

18 /usr/lib/ruby/gems/1.8/gems/passenger-2.2.9/lib/phusion_passenger/spawn_manager.rb 256 in `spawn_rails_application'

19 /usr/lib/ruby/gems/1.8/gems/passenger-2.2.9/lib/phusion_passenger/abstract_server_collection.rb 80 in `synchronize'

20 /usr/lib/ruby/gems/1.8/gems/passenger-2.2.9/lib/phusion_passenger/abstract_server_collection.rb 79 in `synchronize'

21 /usr/lib/ruby/gems/1.8/gems/passenger-2.2.9/lib/phusion_passenger/spawn_manager.rb 255 in `spawn_rails_application'

22 /usr/lib/ruby/gems/1.8/gems/passenger-2.2.9/lib/phusion_passenger/spawn_manager.rb 154 in `spawn_application'

23 /usr/lib/ruby/gems/1.8/gems/passenger-2.2.9/lib/phusion_passenger/spawn_manager.rb 287 in `handle_spawn_application'

24 /usr/lib/ruby/gems/1.8/gems/passenger-2.2.9/lib/phusion_passenger/abstract_server.rb 352 in `__send__'

25 /usr/lib/ruby/gems/1.8/gems/passenger-2.2.9/lib/phusion_passenger/abstract_server.rb 352 in `main_loop'

26 /usr/lib/ruby/gems/1.8/gems/passenger-2.2.9/lib/phusion_passenger/abstract_server.rb 196 in `start_synchronously'

27 /usr/lib/ruby/gems/1.8/gems/passenger-2.2.9/bin/passenger-spawn-server 61