error in server.log
-----------------
Started POST "/users" for 127.0.0.1 at 2014-09-16 07:53:17 -0700
Processing by UsersController#create as HTML
Parameters: {"utf8"=>"?", "authenticity_token"=>"j9fjuCd8tj8WBEMrNbxx9PPv4TUtSA/R1Zg8lYFpeyE=", "user"=>{"login"=>"july", "email"=>"
ju...@yahoo.com", "birthday(1i)"=>"1987", "birthday(2i)"=>"5", "birthday(3i)"=>"7", "password"=>"[FILTERED]", "password_confirmation"=>"[FILTERED]"}, "inviter_id"=>"", "inviter_code"=>"", "commit"=>"Sign Up!"}
[I18n] loading locale: en from config
[I18n] Locale set to en
(0.3ms) begin transaction
User Exists (19.3ms) SELECT 1 AS one FROM "users" WHERE LOWER("users"."email") = LOWER('
ju...@yahoo.com') LIMIT 1
User Exists (0.1ms) SELECT 1 AS one FROM "users" WHERE LOWER("users"."login") = LOWER('july') LIMIT 1
User Exists (0.2ms) SELECT 1 AS one FROM "users" WHERE "users"."persistence_token" = 'd0b5e0adbafffa1ac887b4b9fd91e4f4a40ef9a31c7bb1d5c29ceb69cce5fce2dd0d936f5a64db1460a3757b5b2f0e3c1f6a8811c4bb1bb6a1bfd2c93bc859ae' LIMIT 1
User Exists (0.2ms) SELECT 1 AS one FROM "users" WHERE "users"."single_access_token" = '348vSOIBuIIq9fr8nf' LIMIT 1
User Exists (0.2ms) SELECT 1 AS one FROM "users" WHERE "users"."login" = 'mary1366' LIMIT 1
(0.1ms) rollback transaction
Completed 500 Internal Server Error in 293ms
ActiveRecord::UnknownAttributeError (unknown attribute: user_id):
activerecord (3.2.9) lib/active_record/attribute_assignment.rb:88:in `block in assign_attributes'
activerecord (3.2.9) lib/active_record/attribute_assignment.rb:78:in `each'
activerecord (3.2.9) lib/active_record/attribute_assignment.rb:78:in `assign_attributes'
activerecord (3.2.9) lib/active_record/associations/association.rb:235:in `block in build_record'
activerecord (3.2.9) lib/active_record/base.rb:499:in `initialize'
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activerecord (3.2.9) lib/active_record/reflection.rb:183:in `build_association'
activerecord (3.2.9) lib/active_record/associations/association.rb:233:in `build_record'
activerecord (3.2.9) lib/active_record/associations/collection_association.rb:112:in `build'
activerecord (3.2.9) lib/active_record/associations/collection_proxy.rb:46:in `build'
friendly_id (3.3.3.0) lib/friendly_id/active_record_adapter/slugged_model.rb:54:in `build_a_slug'
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activerecord (3.2.9) lib/active_record/callbacks.rb:264:in `create_or_update'
activerecord (3.2.9) lib/active_record/persistence.rb:84:in `save'
activerecord (3.2.9) lib/active_record/validations.rb:50:in `save'
activerecord (3.2.9) lib/active_record/attribute_methods/dirty.rb:22:in `save'
activerecord (3.2.9) lib/active_record/transactions.rb:259:in `block (2 levels) in save'
activerecord (3.2.9) lib/active_record/transactions.rb:313:in `block in with_transaction_returning_status'
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activerecord (3.2.9) lib/active_record/transactions.rb:259:in `block in save'
activerecord (3.2.9) lib/active_record/transactions.rb:270:in `rollback_active_record_state!'
activerecord (3.2.9) lib/active_record/transactions.rb:258:in `save'
community_engine (2.3.2) app/controllers/users_controller.rb:95:in `create'
actionpack (3.2.9) lib/action_controller/metal/implicit_render.rb:4:in `send_action'
actionpack (3.2.9) lib/abstract_controller/base.rb:167:in `process_action'
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actionpack (3.2.9) lib/abstract_controller/callbacks.rb:18:in `block in process_action'
activesupport (3.2.9) lib/active_support/callbacks.rb:470:in `block in _run__438136660__process_action__980268308__callbacks'
activesupport (3.2.9) lib/active_support/callbacks.rb:215:in `block in _conditional_callback_around_1636'
community_engine (2.3.2) lib/community_engine/localized_application.rb:30:in `set_locale'
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activesupport (3.2.9) lib/active_support/callbacks.rb:405:in `__run_callback'
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activesupport (3.2.9) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (3.2.9) lib/abstract_controller/callbacks.rb:17:in `process_action'
actionpack (3.2.9) lib/action_controller/metal/rescue.rb:29:in `process_action'
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activesupport (3.2.9) lib/active_support/notifications.rb:123:in `block in instrument'
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actionpack (3.2.9) lib/action_controller/metal/instrumentation.rb:29:in `process_action'
actionpack (3.2.9) lib/action_controller/metal/params_wrapper.rb:207:in `process_action'
activerecord (3.2.9) lib/active_record/railties/controller_runtime.rb:18:in `process_action'
actionpack (3.2.9) lib/abstract_controller/base.rb:121:in `process'
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actionpack (3.2.9) lib/action_controller/metal.rb:203:in `dispatch'
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journey (1.0.4) lib/journey/router.rb:68:in `block in call'
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rack (1.4.5) lib/rack/etag.rb:23:in `call'
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actionpack (3.2.9) lib/action_dispatch/middleware/remote_ip.rb:31:in `call'
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activesupport (3.2.9) lib/active_support/tagged_logging.rb:22:in `tagged'
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request_store (1.1.0) lib/request_store/middleware.rb:8:in `call'
actionpack (3.2.9) lib/action_dispatch/middleware/request_id.rb:22:in `call'
rack (1.4.5) lib/rack/methodoverride.rb:21:in `call'
rack (1.4.5) lib/rack/runtime.rb:17:in `call'
activesupport (3.2.9) lib/active_support/cache/strategy/local_cache.rb:72:in `call'
rack (1.4.5) lib/rack/lock.rb:15:in `call'
actionpack (3.2.9) lib/action_dispatch/middleware/static.rb:62:in `call'
railties (3.2.9) lib/rails/engine.rb:479:in `call'
railties (3.2.9) lib/rails/application.rb:223:in `call'
rack (1.4.5) lib/rack/content_length.rb:14:in `call'
railties (3.2.9) lib/rails/rack/log_tailer.rb:17:in `call'
rack (1.4.5) lib/rack/handler/webrick.rb:59:in `service'
/usr/local/rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/webrick/httpserver.rb:138:in `service'
/usr/local/rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/webrick/httpserver.rb:94:in `run'
/usr/local/rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/webrick/server.rb:295:in `block in start_thread'
Rendered /usr/local/rvm/gems/ruby-2.1.2/gems/actionpack-3.2.9/lib/action_dispatch/middleware/templates/rescues/_trace.erb (3.1ms)
Rendered /usr/local/rvm/gems/ruby-2.1.2/gems/actionpack-3.2.9/lib/action_dispatch/middleware/templates/rescues/_request_and_response.erb (2.3ms)
Rendered /usr/local/rvm/gems/ruby-2.1.2/gems/actionpack-3.2.9/lib/action_dispatch/middleware/templates/rescues/diagnostics.erb within rescues/layout (24.8ms)