Erro de update no rails 2.3.2

Pessoal, estou precisando de ajuda... Estou usando o rails 2.3.2.

Quando tento fazer qualquer update (método save em um registro existente), recebo o erro abaixo:

ArgumentError in RequisicaosController#enviar_rede wrong number of arguments (3 for 1)

c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/ base.rb:2875:in `attributes_with_quotes' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/ base.rb:2875:in `update_without_lock' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/ locking/optimistic.rb:81:in `update_without_dirty' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/ dirty.rb:146:in `update_without_timestamps' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/ timestamp.rb:38:in `update_without_callbacks' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/ callbacks.rb:282:in `update' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/ base.rb:2868:in `create_or_update_without_callbacks' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/ callbacks.rb:250:in `create_or_update' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/ base.rb:2539:in `save_without_validation' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/ validations.rb:1009:in `save_without_dirty' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/ dirty.rb:79:in `save_without_transactions' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/ transactions.rb:229:in `send' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/ transactions.rb:229:in `with_transaction_returning_status' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/ connection_adapters/abstract/database_statements.rb:142:in `transaction' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/ transactions.rb:182:in `transaction' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/ transactions.rb:228:in `with_transaction_returning_status' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/ transactions.rb:196:in `save' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/ transactions.rb:208:in `rollback_active_record_state!' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/ transactions.rb:196:in `save' C:/RoR/dev/asac/app/controllers/requisicaos_controller.rb:194:in `enviar_rede'

Alguem poderia me ajudar?

http://www.catb.org/~esr/faqs/hacker-howto.html#skills4