Weather-app error logs

gistfile1.txt

2016-01-26T00:12:10.505148+00:00 heroku[web.1]: State changed from down to starting
2016-01-26T00:12:10.496988+00:00 heroku[web.1]: State changed from up to down
2016-01-26T00:12:10.496350+00:00 heroku[web.1]: Idling
2016-01-26T00:12:13.063556+00:00 heroku[web.1]: Stopping all processes with SIGTERM
2016-01-26T00:12:13.144289+00:00 heroku[web.1]: Starting process with command `bin/rails server -p 15532 -e production`
2016-01-26T00:12:13.693181+00:00 app[web.1]: 	/app/vendor/ruby-2.0.0/lib/ruby/2.0.0/webrick/server.rb:170:in `select'
2016-01-26T00:12:13.693177+00:00 app[web.1]: [2016-01-26 00:12:13] FATAL SignalException: SIGTERM
2016-01-26T00:12:13.693184+00:00 app[web.1]: 	/app/vendor/ruby-2.0.0/lib/ruby/2.0.0/webrick/server.rb:170:in `block in start'
2016-01-26T00:12:13.693185+00:00 app[web.1]: 	/app/vendor/ruby-2.0.0/lib/ruby/2.0.0/webrick/server.rb:32:in `start'
2016-01-26T00:12:13.693185+00:00 app[web.1]: 	/app/vendor/ruby-2.0.0/lib/ruby/2.0.0/webrick/server.rb:160:in `start'
2016-01-26T00:12:13.693188+00:00 app[web.1]: 	/app/vendor/bundle/ruby/2.0.0/gems/railties-4.2.4/lib/rails/commands/server.rb:80:in `start'
2016-01-26T00:12:13.693187+00:00 app[web.1]: 	/app/vendor/bundle/ruby/2.0.0/gems/rack-1.6.4/lib/rack/server.rb:286:in `start'
2016-01-26T00:12:13.693189+00:00 app[web.1]: 	/app/vendor/bundle/ruby/2.0.0/gems/railties-4.2.4/lib/rails/commands/commands_tasks.rb:80:in `block in server'
2016-01-26T00:12:13.693189+00:00 app[web.1]: 	/app/vendor/bundle/ruby/2.0.0/gems/railties-4.2.4/lib/rails/commands/commands_tasks.rb:75:in `tap'
2016-01-26T00:12:13.693191+00:00 app[web.1]: 	/app/vendor/bundle/ruby/2.0.0/gems/railties-4.2.4/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
2016-01-26T00:12:13.693192+00:00 app[web.1]: 	/app/vendor/bundle/ruby/2.0.0/gems/railties-4.2.4/lib/rails/commands.rb:17:in `<top (required)>'
2016-01-26T00:12:13.693186+00:00 app[web.1]: 	/app/vendor/bundle/ruby/2.0.0/gems/rack-1.6.4/lib/rack/handler/webrick.rb:34:in `run'
2016-01-26T00:12:13.693193+00:00 app[web.1]: 	bin/rails:9:in `<main>'
2016-01-26T00:12:13.693190+00:00 app[web.1]: 	/app/vendor/bundle/ruby/2.0.0/gems/railties-4.2.4/lib/rails/commands/commands_tasks.rb:75:in `server'
2016-01-26T00:12:13.693193+00:00 app[web.1]: 	bin/rails:9:in `require'
2016-01-26T00:12:13.693198+00:00 app[web.1]: [2016-01-26 00:12:13] INFO  going to shutdown ...
2016-01-26T00:12:13.693249+00:00 app[web.1]: [2016-01-26 00:12:13] INFO  WEBrick::HTTPServer#start done.
2016-01-26T00:12:13.693272+00:00 app[web.1]: Exiting
2016-01-26T00:12:14.527676+00:00 heroku[web.1]: Process exited with status 143
2016-01-26T00:12:17.456854+00:00 app[web.1]: [2016-01-26 00:12:17] INFO  WEBrick::HTTPServer#start: pid=3 port=15532
2016-01-26T00:12:17.456466+00:00 app[web.1]: [2016-01-26 00:12:17] INFO  WEBrick 1.3.1
2016-01-26T00:12:17.456485+00:00 app[web.1]: [2016-01-26 00:12:17] INFO  ruby 2.0.0 (2015-12-16) [x86_64-linux]
2016-01-26T00:12:17.780572+00:00 heroku[web.1]: State changed from starting to up
2016-01-26T00:46:50.801575+00:00 heroku[web.1]: Idling
2016-01-26T00:46:50.802384+00:00 heroku[web.1]: State changed from up to down
2016-01-26T00:46:54.852815+00:00 heroku[web.1]: Stopping all processes with SIGTERM
2016-01-26T00:46:56.080627+00:00 app[web.1]: [2016-01-26 00:46:56] INFO  WEBrick::HTTPServer#start done.
2016-01-26T00:46:56.080665+00:00 app[web.1]: => Booting WEBrick
2016-01-26T00:46:56.080667+00:00 app[web.1]: => Rails 4.2.4 application starting in production on http://0.0.0.0:15532
2016-01-26T00:46:56.080668+00:00 app[web.1]: => Run `rails server -h` for more startup options
2016-01-26T00:46:56.080669+00:00 app[web.1]: => Ctrl-C to shutdown server
2016-01-26T00:46:56.080685+00:00 app[web.1]: Exiting
2016-01-26T00:46:56.078193+00:00 app[web.1]: [2016-01-26 00:46:56] FATAL SignalException: SIGTERM
2016-01-26T00:46:56.078201+00:00 app[web.1]: 	/app/vendor/ruby-2.0.0/lib/ruby/2.0.0/webrick/server.rb:170:in `select'
2016-01-26T00:46:56.078204+00:00 app[web.1]: 	/app/vendor/ruby-2.0.0/lib/ruby/2.0.0/webrick/server.rb:170:in `block in start'
2016-01-26T00:46:56.078205+00:00 app[web.1]: 	/app/vendor/ruby-2.0.0/lib/ruby/2.0.0/webrick/server.rb:32:in `start'
2016-01-26T00:46:56.078206+00:00 app[web.1]: 	/app/vendor/ruby-2.0.0/lib/ruby/2.0.0/webrick/server.rb:160:in `start'
2016-01-26T00:46:56.078207+00:00 app[web.1]: 	/app/vendor/bundle/ruby/2.0.0/gems/rack-1.6.4/lib/rack/handler/webrick.rb:34:in `run'
2016-01-26T00:46:56.078207+00:00 app[web.1]: 	/app/vendor/bundle/ruby/2.0.0/gems/rack-1.6.4/lib/rack/server.rb:286:in `start'
2016-01-26T00:46:56.078208+00:00 app[web.1]: 	/app/vendor/bundle/ruby/2.0.0/gems/railties-4.2.4/lib/rails/commands/server.rb:80:in `start'
2016-01-26T00:46:56.078209+00:00 app[web.1]: 	/app/vendor/bundle/ruby/2.0.0/gems/railties-4.2.4/lib/rails/commands/commands_tasks.rb:80:in `block in server'
2016-01-26T00:46:56.078210+00:00 app[web.1]: 	/app/vendor/bundle/ruby/2.0.0/gems/railties-4.2.4/lib/rails/commands/commands_tasks.rb:75:in `tap'
2016-01-26T00:46:56.078211+00:00 app[web.1]: 	/app/vendor/bundle/ruby/2.0.0/gems/railties-4.2.4/lib/rails/commands/commands_tasks.rb:75:in `server'
2016-01-26T00:46:56.078211+00:00 app[web.1]: 	/app/vendor/bundle/ruby/2.0.0/gems/railties-4.2.4/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
2016-01-26T00:46:56.078212+00:00 app[web.1]: 	/app/vendor/bundle/ruby/2.0.0/gems/railties-4.2.4/lib/rails/commands.rb:17:in `<top (required)>'
2016-01-26T00:46:56.078213+00:00 app[web.1]: 	bin/rails:9:in `require'
2016-01-26T00:46:56.078213+00:00 app[web.1]: 	bin/rails:9:in `<main>'
2016-01-26T00:46:56.080505+00:00 app[web.1]: [2016-01-26 00:46:56] INFO  going to shutdown ...
2016-01-26T00:46:57.140603+00:00 heroku[web.1]: Process exited with status 143
2016-01-26T19:59:54.674263+00:00 heroku[web.1]: Unidling
2016-01-26T19:59:54.674706+00:00 heroku[web.1]: State changed from down to starting
2016-01-26T19:59:56.717620+00:00 heroku[web.1]: Starting process with command `bin/rails server -p 40092 -e production`
2016-01-26T20:00:00.981896+00:00 app[web.1]: [2016-01-26 20:00:00] INFO  WEBrick 1.3.1
2016-01-26T20:00:00.981921+00:00 app[web.1]: [2016-01-26 20:00:00] INFO  ruby 2.0.0 (2015-12-16) [x86_64-linux]
2016-01-26T20:00:00.982209+00:00 app[web.1]: [2016-01-26 20:00:00] INFO  WEBrick::HTTPServer#start: pid=3 port=40092
2016-01-26T20:00:01.752843+00:00 app[web.1]: => Booting WEBrick
2016-01-26T20:00:01.752847+00:00 app[web.1]: => Rails 4.2.4 application starting in production on http://0.0.0.0:40092
2016-01-26T20:00:01.752848+00:00 app[web.1]: => Run `rails server -h` for more startup options
2016-01-26T20:00:01.752849+00:00 app[web.1]: => Ctrl-C to shutdown server
2016-01-26T20:00:01.752850+00:00 app[web.1]: Started GET "/" for 71.68.81.239 at 2016-01-26 20:00:01 +0000
2016-01-26T20:00:01.850211+00:00 app[web.1]: Processing by HomeController#index as HTML
2016-01-26T20:00:02.085252+00:00 heroku[router]: at=info method=GET path="/" host=weather-app-demo.herokuapp.com request_id=d9cbb2ef-1c01-4b93-9e56-3bf7bb3e5551 fwd="71.68.81.239" dyno=web.1 connect=1ms service=344ms status=500 bytes=1754
2016-01-26T20:00:02.089739+00:00 app[web.1]: Completed 500 Internal Server Error in 239ms (ActiveRecord: 0.0ms)
2016-01-26T20:00:02.091414+00:00 app[web.1]: 
2016-01-26T20:00:02.091419+00:00 app[web.1]:   app/controllers/home_controller.rb:18:in `index'
2016-01-26T20:00:02.091419+00:00 app[web.1]: 
2016-01-26T20:00:02.091420+00:00 app[web.1]: 
2016-01-26T20:00:02.091417+00:00 app[web.1]: NoMethodError (undefined method `[]' for nil:NilClass):
2016-01-26T20:00:03.881042+00:00 heroku[router]: at=info method=GET path="/favicon.ico" host=weather-app-demo.herokuapp.com request_id=4d329e12-d4b5-4554-83de-89a5193d99ac fwd="71.68.81.239" dyno=web.1 connect=1ms service=3ms status=304 bytes=133