Redmine. Error 404

Global error
No route matches [GET] "/category/%EC%88%98%EC%9B%90%EC%B6%9C%EC%9E%A5%EC%95%88%EB%A7%88"

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Error log

        /usr/local/rvm/gems/ruby-2.3.3/gems/actionpack-4.2.7.1/lib/action_dispatch/middleware/debug_exceptions.rb:21:in `call'
/usr/local/rvm/gems/ruby-2.3.3/gems/actionpack-4.2.7.1/lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
/usr/local/rvm/gems/ruby-2.3.3/gems/railties-4.2.7.1/lib/rails/rack/logger.rb:38:in `call_app'
/usr/local/rvm/gems/ruby-2.3.3/gems/railties-4.2.7.1/lib/rails/rack/logger.rb:20:in `block in call'
/usr/local/rvm/gems/ruby-2.3.3/gems/activesupport-4.2.7.1/lib/active_support/tagged_logging.rb:68:in `block in tagged'
/usr/local/rvm/gems/ruby-2.3.3/gems/activesupport-4.2.7.1/lib/active_support/tagged_logging.rb:26:in `tagged'
/usr/local/rvm/gems/ruby-2.3.3/gems/activesupport-4.2.7.1/lib/active_support/tagged_logging.rb:68:in `tagged'
/usr/local/rvm/gems/ruby-2.3.3/gems/railties-4.2.7.1/lib/rails/rack/logger.rb:20:in `call'
/usr/local/rvm/gems/ruby-2.3.3/gems/actionpack-4.2.7.1/lib/action_dispatch/middleware/request_id.rb:21:in `call'
/usr/local/rvm/gems/ruby-2.3.3/gems/rack-1.6.10/lib/rack/methodoverride.rb:22:in `call'
/usr/local/rvm/gems/ruby-2.3.3/gems/rack-1.6.10/lib/rack/runtime.rb:18:in `call'
/usr/local/rvm/gems/ruby-2.3.3/gems/activesupport-4.2.7.1/lib/active_support/cache/strategy/local_cache_middleware.rb:28:in `call'
/usr/local/rvm/gems/ruby-2.3.3/gems/actionpack-4.2.7.1/lib/action_dispatch/middleware/static.rb:120:in `call'
/usr/local/rvm/gems/ruby-2.3.3/gems/rack-1.6.10/lib/rack/content_length.rb:15:in `call'
/usr/local/rvm/gems/ruby-2.3.3/gems/rack-1.6.10/lib/rack/sendfile.rb:113:in `call'
/usr/local/rvm/gems/ruby-2.3.3/gems/railties-4.2.7.1/lib/rails/engine.rb:518:in `call'
/usr/local/rvm/gems/ruby-2.3.3/gems/railties-4.2.7.1/lib/rails/application.rb:165:in `call'
/usr/local/rvm/gems/ruby-2.3.3/gems/railties-4.2.7.1/lib/rails/railtie.rb:194:in `public_send'
/usr/local/rvm/gems/ruby-2.3.3/gems/railties-4.2.7.1/lib/rails/railtie.rb:194:in `method_missing'
/usr/local/rvm/gems/ruby-2.3.3/gems/passenger-5.1.4/src/ruby_supportlib/phusion_passenger/rack/thread_handler_extension.rb:97:in `process_request'
/usr/local/rvm/gems/ruby-2.3.3/gems/passenger-5.1.4/src/ruby_supportlib/phusion_passenger/request_handler/thread_handler.rb:152:in `accept_and_process_next_request'
/usr/local/rvm/gems/ruby-2.3.3/gems/passenger-5.1.4/src/ruby_supportlib/phusion_passenger/request_handler/thread_handler.rb:113:in `main_loop'
/usr/local/rvm/gems/ruby-2.3.3/gems/passenger-5.1.4/src/ruby_supportlib/phusion_passenger/request_handler.rb:416:in `block (3 levels) in start_threads'
/usr/local/rvm/gems/ruby-2.3.3/gems/passenger-5.1.4/src/ruby_supportlib/phusion_passenger/utils.rb:113:in `block in create_thread_and_abort_on_exception'