Bug in sidebars

ActiveRecord::AssociationTypeMismatch (Blog expected, got Blog):
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/
active_record/associations/association_proxy.rb:150:in
raise_on_type_mismatch' /opt/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/ active_record/associations/belongs_to_association.rb:22:inreplace’
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/
active_record/associations.rb:1009:in blog=' /opt/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/ active_record/base.rb:2117:insend’
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/
active_record/base.rb:2117:in attributes=' /opt/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/ active_record/base.rb:2116:ineach’
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/
active_record/base.rb:2116:in attributes=' /opt/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/ active_record/base.rb:1926:ininitialize’
/app/models/sidebar.rb:195:in initialize' /opt/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/ active_record/validations.rb:908:innew’
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/
active_record/validations.rb:908:in create!' /app/controllers/admin/sidebar_controller.rb:27:inset_active’
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/
active_record/base.rb:1748:in inject' /app/controllers/admin/sidebar_controller.rb:25:ineach’
/app/controllers/admin/sidebar_controller.rb:25:in inject' /app/controllers/admin/sidebar_controller.rb:25:inset_active’
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/base.rb:1158:in send' /opt/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/base.rb:1158:inperform_action_without_filters’
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/filters.rb:697:in call_filters' /opt/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/filters.rb:689:inperform_action_without_benchmark’
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/benchmarking.rb:68:in perform_action_without_rescue' /opt/local/lib/ruby/1.8/benchmark.rb:293:inmeasure’
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/benchmarking.rb:68:in perform_action_without_rescue' /opt/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/rescue.rb:199:inperform_action_without_caching’
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/caching.rb:678:in perform_action' /opt/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/ active_record/connection_adapters/abstract/query_cache.rb:33:incache’
/opt/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/
active_record/query_cache.rb:8:in cache' /opt/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/caching.rb:677:inperform_action’
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/base.rb:524:in send' /opt/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/base.rb:524:inprocess_without_filters’
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/filters.rb:685:in
process_without_session_management_support' /opt/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/session_management.rb:123:inprocess’
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/base.rb:388:in process' /opt/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/dispatcher.rb:171:inhandle_request’
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/dispatcher.rb:115:in dispatch' /opt/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/dispatcher.rb:126:indispatch_cgi’
/opt/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/dispatcher.rb:9:in dispatch' /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/bin/../lib/ mongrel/rails.rb:76:inprocess’
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/bin/…/lib/
mongrel/rails.rb:74:in synchronize' /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/bin/../lib/ mongrel/rails.rb:74:inprocess’
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:
159:in process_client' /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb: 158:ineach’
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:
158:in process_client' /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb: 285:inrun’
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:
285:in initialize' /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb: 285:innew’
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:
285:in run' /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb: 268:ininitialize’
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb:
268:in new' /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel.rb: 268:inrun’
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel/
configurator.rb:282:in run' /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel/ configurator.rb:281:ineach’
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel/
configurator.rb:281:in run' /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/bin/mongrel_rails: 128:inrun’
/opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/lib/mongrel/
command.rb:212:in run' /opt/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/bin/mongrel_rails: 281 /opt/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/ active_support/dependencies.rb:489:inload’
/opt/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/
active_support/dependencies.rb:489:in load' /opt/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/ active_support/dependencies.rb:342:innew_constants_in’
/opt/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/
active_support/dependencies.rb:489:in load' /opt/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/ servers/mongrel.rb:64 /opt/local/lib/ruby/vendor_ruby/1.8/rubygems/custom_require.rb: 27:ingem_original_require’
/opt/local/lib/ruby/vendor_ruby/1.8/rubygems/custom_require.rb:
27:in require' /opt/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/ active_support/dependencies.rb:496:inrequire’
/opt/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/
active_support/dependencies.rb:342:in new_constants_in' /opt/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/ active_support/dependencies.rb:496:inrequire’
/opt/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/
server.rb:39
/opt/local/lib/ruby/vendor_ruby/1.8/rubygems/custom_require.rb:
27:in gem_original_require' /opt/local/lib/ruby/vendor_ruby/1.8/rubygems/custom_require.rb: 27:inrequire’
script/server:3

Rendering /opt/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/templates/rescues/layout.erb (internal_server_error)

Typo 2.0.3 on postgresql.
Someone have any clue ?

ngw