Issue with upgrading wagn 1.6.1 to 1.7.1+issues

The error now is the following

Processing CardController#index (for x.x.x.x at 2011-11-01 10:05:26)

ActiveRecord::SubclassNotFound (The single-table inheritance mechanism failed to locate the subclass: 'Basic'. This error is raised because the column 'type' is reserved for storing the class in case of inheritance. Please rename this column if you didn't intend it to be used for storing the inheritance class or overwrite Card.inheritance_column to use another column for that information.):
  lib/wagn/model/acts_as_card_extension.rb:7:in `card'
  app/models/user.rb:90:in `[]'
  app/controllers/application_controller.rb:45:in `per_request_setup'
  /dh/passenger/lib/phusion_passenger/rack/request_handler.rb:92:in `process_request'
  /dh/passenger/lib/phusion_passenger/abstract_request_handler.rb:207:in `main_loop'
  /dh/passenger/lib/phusion_passenger/railz/application_spawner.rb:400:in `start_request_handler'
  /dh/passenger/lib/phusion_passenger/railz/application_spawner.rb:351:in `handle_spawn_application'
  /dh/passenger/lib/phusion_passenger/utils.rb:184:in `safe_fork'
  /dh/passenger/lib/phusion_passenger/railz/application_spawner.rb:349:in `handle_spawn_application'
  /dh/passenger/lib/phusion_passenger/abstract_server.rb:352:in `__send__'
  /dh/passenger/lib/phusion_passenger/abstract_server.rb:352:in `main_loop'
  /dh/passenger/lib/phusion_passenger/abstract_server.rb:196:in `start_synchronously'
  /dh/passenger/lib/phusion_passenger/abstract_server.rb:163:in `start'
  /dh/passenger/lib/phusion_passenger/railz/application_spawner.rb:209:in `start'
  /dh/passenger/lib/phusion_passenger/spawn_manager.rb:262:in `spawn_rails_application'
  /dh/passenger/lib/phusion_passenger/abstract_server_collection.rb:126:in `lookup_or_add'
  /dh/passenger/lib/phusion_passenger/spawn_manager.rb:256:in `spawn_rails_application'
  /dh/passenger/lib/phusion_passenger/abstract_server_collection.rb:80:in `synchronize'
  /dh/passenger/lib/phusion_passenger/abstract_server_collection.rb:79:in `synchronize'
  /dh/passenger/lib/phusion_passenger/spawn_manager.rb:255:in `spawn_rails_application'
  /dh/passenger/lib/phusion_passenger/spawn_manager.rb:154:in `spawn_application'
  /dh/passenger/lib/phusion_passenger/spawn_manager.rb:287:in `handle_spawn_application'
  /dh/passenger/lib/phusion_passenger/abstract_server.rb:352:in `__send__'
  /dh/passenger/lib/phusion_passenger/abstract_server.rb:352:in `main_loop'
  /dh/passenger/lib/phusion_passenger/abstract_server.rb:196:in `start_synchronously'

 

Thank you for any hints what went wrong.  From the log I presume issues with inheritance but did not investigate further yet.

 

Tukanos