Rails Tutorial　13章のHerokuへのデプロイでApplication Errorと表示される

前提・実現したいこと

ここに質問の内容を詳しく書いてください。
Rails Tutorial　13章のHerokuへのデプロイはできるのですが、Application Errorと表示されてしまいます

発生している問題・エラーメッセージ

エラーメッセージ

heroku logs -t　の結果
2020-06-26T18:00:13.456509+00:00 app[web.1]: [4] * Version 4.3.5 (ruby 2.6.3-p62), codename: Mysterious Traveller
2020-06-26T18:00:13.456510+00:00 app[web.1]: [4] * Min threads: 5, max threads: 5
2020-06-26T18:00:13.456510+00:00 app[web.1]: [4] * Environment: production
2020-06-26T18:00:13.456510+00:00 app[web.1]: [4] * Process workers: 2
2020-06-26T18:00:13.456511+00:00 app[web.1]: [4] * Preloading application
2020-06-26T18:00:20.479508+00:00 app[web.1]: [4] ! Unable to load application: NoMethodError: Cannot load Rails.config.active_storage.service:
2020-06-26T18:00:20.479522+00:00 app[web.1]: undefined method match' for nil:NilClass 2020-06-26T18:00:20.479659+00:00 app[web.1]: bundler: failed to load command: puma (/app/vendor/bundle/ruby/2.6.0/bin/puma) 2020-06-26T18:00:20.479757+00:00 app[web.1]: NoMethodError: Cannot load Rails.config.active_storage.service: 2020-06-26T18:00:20.479757+00:00 app[web.1]: undefined method match' for nil:NilClass
2020-06-26T18:00:20.479767+00:00 app[web.1]: /app/vendor/bundle/ruby/2.6.0/gems/aws-partitions-1.327.0/lib/aws-partitions/endpoint_provider.rb:106:in `block in partition_matching_region'

heroku run rails c の結果
/app/vendor/bundle/ruby/2.6.0/gems/aws-partitions-1.327.0/lib/aws-partitions/endpoint_provider.rb:106:in block in partition_matching_region': Cannot load Rails.config.active_storage.service: (NoMethodError) undefined method match' for nil:NilClass

該当のソースコード

storage.yml
1amazon:
2  service: S3
3  access_key_id:     <%= ENV['S3_ACCESS_KEY_ID'] %>
4  secret_access_key: <%= ENV['S3_SECRET_ACCESS_KEY'] %>
5  region:            <%= ENV['S3_REGION'] %>
6  bucket:            <%= ENV['S3_BUCKET'] %>