I have just deployed my Rails app to Heroku using git (git push heroku master).
However I just get the message:"We're sorry, but something went wrong. If you are the application owner check the logs for more information." Here is the logfile:

```
2015-04-08T20:58:32.525530+00:00 heroku[api]: Deploy 15d1bce by karlneumann61@gmail.com
2015-04-08T20:58:32.525530+00:00 heroku[api]: Release v33 created by karlneumann61@gmail.com
2015-04-08T20:58:58.387070+00:00 heroku[web.1]: Unidling
2015-04-08T20:58:58.387070+00:00 heroku[web.1]: State changed from down to starting
2015-04-08T20:59:01.918413+00:00 heroku[web.1]: Starting process with command `bin/rails server -p 19263 -e production`
2015-04-08T20:59:05.853782+00:00 heroku[web.1]: State changed from starting to up
2015-04-08T20:59:05.711368+00:00 app[web.1]: [2015-04-08 20:59:05] INFO  ruby 2.0.0 (2015-02-25) [x86_64-linux]
2015-04-08T20:59:05.711339+00:00 app[web.1]: [2015-04-08 20:59:05] INFO  WEBrick 1.3.1
2015-04-08T20:59:05.711843+00:00 app[web.1]: [2015-04-08 20:59:05] INFO  WEBrick::HTTPServer#start: pid=3 port=19263
2015-04-08T20:59:07.801064+00:00 heroku[router]: at=info method=GET path="/" host=safe-meadow-7068.herokuapp.com request_id=ae843156-0a58-46c1-a337-c622208e558e fwd="68.4.41.5" dyno=web.1 connect=0ms service=346ms status=500 bytes=32806
2015-04-08T20:59:08.327653+00:00 heroku[router]: at=info method=GET path="/favicon.ico" host=safe-meadow-7068.herokuapp.com request_id=8859d3bb-6a86-45da-814e-2d1400cf7263 fwd="68.4.41.5" dyno=web.1 connect=1ms service=5ms status=200 bytes=273
2015-04-08T21:00:12.031263+00:00 heroku[api]: Starting process with command `rails c` by karlneumann61@gmail.com
2015-04-08T21:00:16.316848+00:00 heroku[run.8033]: Starting process with command `rails c`
2015-04-08T21:00:16.273483+00:00 heroku[run.8033]: Awaiting client
2015-04-08T21:00:16.542068+00:00 heroku[run.8033]: State changed from starting to up
2015-04-08T21:00:36.871421+00:00 heroku[run.8033]: State changed from up to complete
2015-04-08T21:00:36.852479+00:00 heroku[run.8033]: Process exited with status 0
2015-04-08T21:00:47.123245+00:00 heroku[api]: Starting process with command `irb` by karlneumann61@gmail.com
2015-04-08T21:00:51.870194+00:00 heroku[run.8658]: Starting process with command `irb`
2015-04-08T21:00:51.829253+00:00 heroku[run.8658]: Awaiting client
2015-04-08T21:00:52.244324+00:00 heroku[run.8658]: State changed from starting to up
2015-04-08T21:06:00.169021+00:00 heroku[api]: Deploy 2fa71a8 by karlneumann61@gmail.com
2015-04-08T21:06:00.169021+00:00 heroku[api]: Release v34 created by karlneumann61@gmail.com
2015-04-08T21:06:00.858341+00:00 heroku[web.1]: State changed from up to starting
2015-04-08T21:06:03.231028+00:00 heroku[web.1]: Stopping all processes with SIGTERM
2015-04-08T21:06:03.788818+00:00 app[web.1]:    /app/vendor/bundle/ruby/2.0.0/gems/railties-4.1.9/lib/rails/commands/server.rb:69:in `start'
2015-04-08T21:06:03.788801+00:00 app[web.1]: [2015-04-08 21:06:03] FATAL SignalException: SIGTERM
2015-04-08T21:06:03.788808+00:00 app[web.1]:    /app/vendor/ruby-2.0.0/lib/ruby/2.0.0/webrick/server.rb:170:in `select'
2015-04-08T21:06:03.788810+00:00 app[web.1]:    /app/vendor/ruby-2.0.0/lib/ruby/2.0.0/webrick/server.rb:170:in `block in start'
2015-04-08T21:06:03.788812+00:00 app[web.1]:    /app/vendor/ruby-2.0.0/lib/ruby/2.0.0/webrick/server.rb:32:in `start'
2015-04-08T21:06:03.788824+00:00 app[web.1]:    /app/vendor/bundle/ruby/2.0.0/gems/railties-4.1.9/lib/rails/commands/commands_tasks.rb:76:in `server'
2015-04-08T21:06:03.788830+00:00 app[web.1]:    bin/rails:8:in `<main>'
2015-04-08T21:06:03.788836+00:00 app[web.1]: [2015-04-08 21:06:03] INFO  going to shutdown ...
2015-04-08T21:06:03.788861+00:00 app[web.1]: [2015-04-08 21:06:03] INFO  WEBrick::HTTPServer#start done.
2015-04-08T21:06:03.817499+00:00 app[web.1]: => Booting WEBrick
2015-04-08T21:06:03.817506+00:00 app[web.1]: => Rails 4.1.9 application starting in production on http://0.0.0.0:19263
2015-04-08T21:06:03.817508+00:00 app[web.1]: => Run `rails server -h` for more startup options
2015-04-08T21:06:03.817510+00:00 app[web.1]: => Notice: server is listening on all interfaces (0.0.0.0). Consider using 127.0.0.1 (--binding option)
2015-04-08T21:06:03.788826+00:00 app[web.1]:    /app/vendor/bundle/ruby/2.0.0/gems/railties-4.1.9/lib/rails/commands.rb:17:in `<top (required)>'
2015-04-08T21:06:03.788828+00:00 app[web.1]:    bin/rails:8:in `require'
2015-04-08T21:06:03.788820+00:00 app[web.1]:    /app/vendor/bundle/ruby/2.0.0/gems/railties-4.1.9/lib/rails/commands/commands_tasks.rb:81:in `block in server'
2015-04-08T21:06:03.788814+00:00 app[web.1]:    /app/vendor/ruby-2.0.0/lib/ruby/2.0.0/webrick/server.rb:160:in `start'
2015-04-08T21:06:03.788815+00:00 app[web.1]:    /app/vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/handler/webrick.rb:14:in `run'
2015-04-08T21:06:03.788825+00:00 app[web.1]:    /app/vendor/bundle/ruby/2.0.0/gems/railties-4.1.9/lib/rails/commands/commands_tasks.rb:40:in `run_command!'
2015-04-08T21:06:03.817512+00:00 app[web.1]: => Ctrl-C to shutdown server
2015-04-08T21:06:03.817514+00:00 app[web.1]: Exiting
2015-04-08T21:06:03.788817+00:00 app[web.1]:    /app/vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/server.rb:264:in `start'
2015-04-08T21:06:03.788822+00:00 app[web.1]:    /app/vendor/bundle/ruby/2.0.0/gems/railties-4.1.9/lib/rails/commands/commands_tasks.rb:76:in `tap'
2015-04-08T21:06:04.556844+00:00 heroku[web.1]: Process exited with status 143
2015-04-08T21:06:05.239348+00:00 heroku[web.1]: Starting process with command `bin/rails server -p 51743 -e production`
2015-04-08T21:06:09.526524+00:00 app[web.1]: [2015-04-08 21:06:09] INFO  WEBrick 1.3.1
2015-04-08T21:06:09.526539+00:00 app[web.1]: [2015-04-08 21:06:09] INFO  ruby 2.0.0 (2015-02-25) [x86_64-linux]
2015-04-08T21:06:09.526541+00:00 app[web.1]: [2015-04-08 21:06:09] INFO  WEBrick::HTTPServer#start: pid=3 port=51743
2015-04-08T21:06:09.762624+00:00 heroku[web.1]: State changed from starting to up
2015-04-08T21:06:10.399326+00:00 heroku[router]: at=info method=GET path="/" host=safe-meadow-7068.herokuapp.com request_id=02625479-f288-4b5a-8630-4f8c4340825c fwd="68.4.41.5" dyno=web.1 connect=1ms service=183ms status=500 bytes=1799
2015-04-08T21:06:10.582710+00:00 heroku[router]: at=info method=GET path="/favicon.ico" host=safe-meadow-7068.herokuapp.com request_id=d88d7ce7-29ae-44c3-9b02-827bccaed693 fwd="68.4.41.5" dyno=web.1 connect=1ms service=15ms status=200 bytes=273
2015-04-08T21:06:23.250309+00:00 heroku[router]: at=info method=GET path="/" host=safe-meadow-7068.herokuapp.com request_id=42957740-d362-4d01-a6da-228639563cd8 fwd="68.4.41.5" dyno=web.1 connect=5ms service=17ms status=500 bytes=1799
2015-04-08T21:06:23.424646+00:00 heroku[router]: at=info method=GET path="/favicon.ico" host=safe-meadow-7068.herokuapp.com request_id=71b45dc4-83ea-42ea-9116-17b0947bd7b5 fwd="68.4.41.5" dyno=web.1 connect=1ms service=4ms status=304 bytes=178
2015-04-08T21:08:26.530796+00:00 heroku[router]: at=info method=GET path="/" host=safe-meadow-7068.herokuapp.com request_id=6cecf303-4a4f-491b-ab59-d9fe5869915c fwd="68.4.41.5" dyno=web.1 connect=1ms service=14ms status=500 bytes=1799
2015-04-08T21:08:26.703863+00:00 heroku[router]: at=info method=GET path="/favicon.ico" host=safe-meadow-7068.herokuapp.com request_id=cea8ee33-7849-4075-b2e2-a4f75888de67 fwd="68.4.41.5" dyno=web.1 connect=1ms service=4ms status=304 bytes=178
2015-04-08T21:10:38.775574+00:00 heroku[router]: at=info method=GET path="/" host=safe-meadow-7068.herokuapp.com request_id=6ed8b038-7bd4-4a26-aecd-113c82385688 fwd="68.4.41.5" dyno=web.1 connect=1ms service=42ms status=500 bytes=1799
2015-04-08T21:10:38.960333+00:00 heroku[router]: at=info method=GET path="/favicon.ico" host=safe-meadow-7068.herokuapp.com request_id=3784667c-363e-432e-9afe-3bb550f9fcc6 fwd="68.4.41.5" dyno=web.1 connect=1ms service=11ms status=304 bytes=178
2015-04-08T21:13:00.421178+00:00 heroku[router]: at=info method=GET path="/" host=safe-meadow-7068.herokuapp.com request_id=a0deb273-a1f2-43db-87b2-c0063c0b0928 fwd="68.4.41.5" dyno=web.1 connect=3ms service=64ms status=500 bytes=1799
2015-04-08T21:13:00.649220+00:00 heroku[router]: at=info method=GET path="/favicon.ico" host=safe-meadow-7068.herokuapp.com request_id=b91eeb87-f6ae-4849-b016-cb6d98331707 fwd="68.4.41.5" dyno=web.1 connect=3ms service=9ms status=304 bytes=178
2015-04-08T21:13:33.619183+00:00 heroku[router]: at=info method=GET path="/" host=safe-meadow-7068.herokuapp.com request_id=32de7992-e96d-420c-926c-9731b804a109 fwd="68.4.41.5" dyno=web.1 connect=2ms service=25ms status=500 bytes=1799
2015-04-08T21:13:33.837367+00:00 heroku[router]: at=info method=GET path="/favicon.ico" host=safe-meadow-7068.herokuapp.com request_id=c53c3a7c-27f9-47d4-89b2-55e9e7daa5aa fwd="68.4.41.5" dyno=web.1 connect=2ms service=7ms status=304 bytes=178
2015-04-08T21:15:17.622440+00:00 heroku[router]: at=info method=GET path="/" host=safe-meadow-7068.herokuapp.com request_id=27b33a42-62b6-4509-8341-6a53e94221c9 fwd="68.4.41.5" dyno=web.1 connect=2ms service=50ms status=500 bytes=1799
2015-04-08T21:15:17.844377+00:00 heroku[router]: at=info method=GET path="/favicon.ico" host=safe-meadow-7068.herokuapp.com request_id=9f0c60c8-97a2-4628-8a68-587e0a767ce9 fwd="68.4.41.5" dyno=web.1 connect=3ms service=11ms status=304 bytes=178
2015-04-08T21:18:35.247221+00:00 heroku[run.8658]: Client connection closed. Sending SIGHUP to all processes
2015-04-08T21:18:35.919623+00:00 heroku[run.8658]: Process exited with status 129
2015-04-08T21:18:35.929423+00:00 heroku[run.8658]: State changed from up to complete
2015-04-08T21:26:49.084292+00:00 heroku[api]: Starting process with command `bundle exec rake db:migrate` by karlneumann61@gmail.com
2015-04-08T21:26:53.500136+00:00 heroku[run.1135]: Starting process with command `bundle exec rake db:migrate`
2015-04-08T21:26:53.474863+00:00 heroku[run.1135]: Awaiting client
2015-04-08T21:26:53.727200+00:00 heroku[run.1135]: State changed from starting to up
2015-04-08T21:26:59.686281+00:00 heroku[run.1135]: State changed from up to complete
2015-04-08T21:26:59.667354+00:00 heroku[run.1135]: Process exited with status 0
2015-04-08T21:27:22.303972+00:00 heroku[router]: at=info method=GET path="/" host=safe-meadow-7068.herokuapp.com request_id=0a1f187b-4af8-4796-848c-228273113f75 fwd="68.4.41.5" dyno=web.1 connect=6ms service=21ms status=500 bytes=1799
2015-04-08T21:27:22.476170+00:00 heroku[router]: at=info method=GET path="/favicon.ico" host=safe-meadow-7068.herokuapp.com request_id=2c972651-a0f5-40d0-953a-22a98ee31e54 fwd="68.4.41.5" dyno=web.1 connect=1ms service=3ms status=304 bytes=178
2015-04-08T21:27:25.116136+00:00 heroku[router]: at=info method=GET path="/" host=safe-meadow-7068.herokuapp.com request_id=4ae6b331-98fa-4879-83c5-6a62bdc74d82 fwd="68.4.41.5" dyno=web.1 connect=5ms service=41ms status=500 bytes=1799
2015-04-08T21:27:27.273040+00:00 heroku[router]: at=info method=GET path="/" host=safe-meadow-7068.herokuapp.com request_id=ba9551d5-c924-4daf-9214-3fe342df7f3f fwd="68.4.41.5" dyno=web.1 connect=2ms service=43ms    status=500 bytes=1799
2015-04-08T21:27:30.578930+00:00 heroku[router]: at=info method=GET path="/" host=safe-meadow-7068.herokuapp.com request_id=043da344-853c-4d75-a5d6-86a94aa44c00 fwd="68.4.41.5" dyno=web.1 connect=1ms service=42ms status=500 bytes=1799
2015-04-08T21:41:48.411255+00:00 heroku[router]: at=info method=GET path="/" host=safe-meadow-7068.herokuapp.com request_id=45e6f1dd-5b65-4e17-87b9-ed1496584dd7 fwd="68.4.41.5" dyno=web.1 connect=5ms service=16ms status=500 bytes=1799
2015-04-08T21:41:48.577592+00:00 heroku[router]: at=info method=GET path="/favicon.ico" host=safe-meadow-7068.herokuapp.com request_id=a39f9e80-5393-4567-aea2-ee4cc70e04d4 fwd="68.4.41.5" dyno=web.1 connect=1ms service=5ms status=304 bytes=178
2015-04-08T21:53:27.984181+00:00 heroku[router]: at=info method=GET path="/" host=safe-meadow-7068.herokuapp.com request_id=e1fc42b5-839b-49b3-a393-93d96182f6a0 fwd="68.4.41.5" dyno=web.1 connect=1ms service=17ms status=500 bytes=1799
2015-04-08T21:53:28.159565+00:00 heroku[router]: at=info method=GET path="/favicon.ico" host=safe-meadow-7068.herokuapp.com request_id=69a339f3-379e-45be-a381-c4ed8192d007 fwd="68.4.41.5" dyno=web.1 connect=4ms service=5ms status=304 bytes=178
2015-04-08T22:07:17.980998+00:00 heroku[router]: at=info method=GET path="/" host=safe-meadow-7068.herokuapp.com request_id=0a54ce03-5edd-417b-8b36-d0c61608a7ff fwd="68.4.41.5" dyno=web.1 connect=4ms service=20ms status=500 bytes=1799
2015-04-08T22:07:18.151149+00:00 heroku[router]: at=info method=GET path="/favicon.ico" host=safe-meadow-7068.herokuapp.com request_id=3f6cb077-01ae-41a1-a025-38aeb01c5084 fwd="68.4.41.5" dyno=web.1 connect=1ms service=4ms status=304 bytes=178
2015-04-08T22:07:37.180779+00:00 heroku[router]: at=info method=GET path="/" host=safe-meadow-7068.herokuapp.com request_id=4ccc61a9-b432-42ef-ae44-4c383f2d805a fwd="68.4.41.5" dyno=web.1 connect=1ms service=125ms status=500 bytes=1799
2015-04-08T22:12:04.773961+00:00 heroku[router]: at=info method=GET path="/" host=safe-meadow-7068.herokuapp.com request_id=71197215-692d-47f5-b291-ccf01d7386b8 fwd="68.4.41.5" dyno=web.1 connect=0ms service=61ms status=500 bytes=1799
2015-04-08T22:15:18.801851+00:00 heroku[router]: at=info method=GET path="/" host=safe-meadow-7068.herokuapp.com request_id=8e8c3ad6-dbab-4016-a5bd-6e9a61f27b41 fwd="68.4.41.5" dyno=web.1 connect=1ms service=16ms status=500 bytes=1799
2015-04-08T22:15:19.059733+00:00 heroku[router]: at=info method=GET path="/favicon.ico" host=safe-meadow-7068.herokuapp.com request_id=d5db82bb-54d1-4eba-b932-c4063a875755 fwd="68.4.41.5" dyno=web.1 connect=1ms service=4ms status=200 bytes=273
2015-04-08T22:20:13.807920+00:00 heroku[router]: at=info method=GET path="/" host=safe-meadow-7068.herokuapp.com request_id=68bd0039-8f1f-429e-a5fb-f491d40da09e fwd="68.4.41.5" dyno=web.1 connect=2ms service=50ms status=500 bytes=1799

```

Here is the GEMFILE:

```
source 'https://rubygems.org'
ruby '2.0.0'
gem 'rails', '4.1.9'
group :development, :test do
  gem 'sqlite3'
end
group :production do
  gem 'pg'
end
gem 'sass-rails', '~> 4.0.3'
gem 'uglifier', '>= 1.3.0'
gem 'coffee-rails', '~> 4.0.0'
gem 'jquery-rails'
gem 'turbolinks'
gem 'jbuilder', '~> 2.0'
gem 'sdoc', '~> 0.4.0',          group: :doc
gem 'spring',        group: :development
gem 'paperclip'
gem 'aws-sdk','<2.0'
gem 'bcrypt-ruby','~> 3.1.2'

```

Can somebody please take a look and give me some advice. Thanks.