【Rails4】デプロイ後にRoutingErrorが発生

前提・実現したいこと

修正したソースをデプロイ後にRoutingErrorが発生したため原因を特定し、アプリが正常に動くようにしたいです。

発生している問題・エラーメッセージ

【production.log】

I, [2018-03-27T11:00:40.545890 #20406]  INFO -- : Started GET "/login/login" for 127.0.0.1 at 2018-03-27 11:00:40 +0900
F, [2018-03-27T11:00:40.547779 #20406] FATAL -- : 
ActionController::RoutingError (No route matches [GET] "/login/login"):
  actionpack (4.2.5) lib/action_dispatch/middleware/debug_exceptions.rb:21:in `call'
  actionpack (4.2.5) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
  railties (4.2.5) lib/rails/rack/logger.rb:38:in `call_app'
  railties (4.2.5) lib/rails/rack/logger.rb:20:in `block in call'
  activesupport (4.2.5) lib/active_support/tagged_logging.rb:68:in `block in tagged'
  activesupport (4.2.5) lib/active_support/tagged_logging.rb:26:in `tagged'
  activesupport (4.2.5) lib/active_support/tagged_logging.rb:68:in `tagged'
  railties (4.2.5) lib/rails/rack/logger.rb:20:in `call'
  actionpack (4.2.5) lib/action_dispatch/middleware/request_id.rb:21:in `call'
  rack (1.6.4) lib/rack/methodoverride.rb:22:in `call'
  rack (1.6.4) lib/rack/runtime.rb:18:in `call'
  activesupport (4.2.5) lib/active_support/cache/strategy/local_cache_middleware.rb:28:in `call'
  rack (1.6.4) lib/rack/sendfile.rb:113:in `call'
  railties (4.2.5) lib/rails/engine.rb:518:in `call'
  railties (4.2.5) lib/rails/application.rb:165:in `call'
  unicorn (5.2.0) lib/unicorn/http_server.rb:562:in `process_client'
  unicorn (5.2.0) lib/unicorn/http_server.rb:658:in `worker_loop'
  unicorn (5.2.0) lib/unicorn/http_server.rb:508:in `spawn_missing_workers'
  unicorn (5.2.0) lib/unicorn/http_server.rb:132:in `start'
  unicorn (5.2.0) bin/unicorn_rails:209:in `<top (required)>'
  /usr/local/rbenv/versions/2.3.0/bin/unicorn_rails:23:in `load'
  /usr/local/rbenv/versions/2.3.0/bin/unicorn_rails:23:in `<top (required)>'
  bundler (1.13.6) lib/bundler/cli/exec.rb:74:in `load'
  bundler (1.13.6) lib/bundler/cli/exec.rb:74:in `kernel_load'
  bundler (1.13.6) lib/bundler/cli/exec.rb:27:in `run'
  bundler (1.13.6) lib/bundler/cli.rb:332:in `exec'
  bundler (1.13.6) lib/bundler/vendor/thor/lib/thor/command.rb:27:in `run'
  bundler (1.13.6) lib/bundler/vendor/thor/lib/thor/invocation.rb:126:in `invoke_command'
  bundler (1.13.6) lib/bundler/vendor/thor/lib/thor.rb:359:in `dispatch'
  bundler (1.13.6) lib/bundler/cli.rb:20:in `dispatch'
  bundler (1.13.6) lib/bundler/vendor/thor/lib/thor/base.rb:440:in `start'
  bundler (1.13.6) lib/bundler/cli.rb:11:in `start'
  bundler (1.13.6) exe/bundle:34:in `block in <top (required)>'
  bundler (1.13.6) lib/bundler/friendly_errors.rb:100:in `with_friendly_errors'
  bundler (1.13.6) exe/bundle:26:in `<top (required)>'
  /usr/local/rbenv/versions/2.3.0/bin/bundle:23:in `load'
  /usr/local/rbenv/versions/2.3.0/bin/bundle:23:in `<main>'

該当のソースコード

【config/unicorn.rb】

worker_processes Integer(ENV["WEB_CONCURRENCY"] || 3)
timeout 15
preload_app true  # 更新時ダウンタイム無し

listen "/tmp/unicorn.sock"
pid "/tmp/unicorn.pid"

before_fork do |server, worker|
  Signal.trap 'TERM' do
    puts 'Unicorn master intercepting TERM and sending myself QUIT instead'
    Process.kill 'QUIT', Process.pid
  end

  defined?(ActiveRecord::Base) and
    ActiveRecord::Base.connection.disconnect!
end

after_fork do |server, worker|
  Signal.trap 'TERM' do
    puts 'Unicorn worker intercepting TERM and doing nothing. Wait for master to send QUIT'
  end

  defined?(ActiveRecord::Base) and
    ActiveRecord::Base.establish_connection
end

# ログの出力
stderr_path File.expand_path('log/unicorn.log', ENV['RAILS_ROOT'])
stdout_path File.expand_path('log/unicorn.log', ENV['RAILS_ROOT'])

【config/routes.rb】

Rails.application.routes.draw do
  #root 'functions#new'
  get 'functions' => 'functions#new'
  # post 'ymst' => 'ymst#create'
  post 'ymst' => 'ymst#orderimport'
  get 'ymst/updater'
  resources :ymst
  resources :cs_comp_dsts
  #match ':controller(/:action(/:id))', via: [:get, :post, :patch]
  root 'chokotto#index'
  get 'login' => 'login#login'
  get 'top' => 'chokotto#index', as: :top
  get "/auth/:provider/callback" => "sessions#create"
  get "/signout" => "sessions#destroy", :as => :signout
end