【Rails5】herokuにてデプロイ後、エラーが出てしまいます。

前提・実現したいこと

rails5でアプリケーションを作成しています。
herokuへデプロイしたのですが、
アクセスしてもうまく表示がされず、下記のような表示になります。

どうすればデプロイしたアプリケーションがうまく表示されるのでしょうか？

発生している問題・エラーメッセージ

###ソースコード

heroku
1app[api]: Starting process with command `rails db:migrate` by user sample@gmail.com
2heroku[run.4116]: Awaiting client
3heroku[run.4116]: Starting process with command `rails db:migrate`
4heroku[run.4116]: State changed from starting to up
5heroku[run.4116]: State changed from up to complete
6heroku[run.4116]: Process exited with status 0
7heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=sample.herokuapp.com request_id=76956f5d-5746-45ff-a37d-8efb80a9b614 fwd="220.109.179.38" dyno= connect= service= status=503 bytes= protocol=https
82019-09-08T14:05:20.515155+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=sample.herokuapp.com request_id=601c5a4c-808e-4ed5-a3d5-541210d9c793 fwd="220.109.179.38" dyno= connect= service= status=503 bytes= protocol=https
92019-09-08T14:05:20.158166+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=sample.herokuapp.com request_id=b49f7f07-e812-4154-9fd8-d49df726018d fwd="220.109.179.38" dyno= connect= service= status=503 bytes= protocol=https
102019-09-08T14:07:22.241475+00:00 app[api]: Starting process with command `rails c` by user sample@gmail.com
112019-09-08T14:07:27.986281+00:00 heroku[run.3888]: State changed from starting to up
122019-09-08T14:07:28.135798+00:00 heroku[run.3888]: Awaiting client
132019-09-08T14:07:28.194322+00:00 heroku[run.3888]: Starting process with command `rails c`
142019-09-08T14:07:35.505646+00:00 heroku[run.3888]: State changed from up to complete
152019-09-08T14:07:35.595136+00:00 heroku[run.3888]: Process exited with status 1
162019-09-08T14:12:50.201765+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=sample.herokuapp.com request_id=7300bc95-03f4-4c1f-a7bb-4ce8b41d28fd fwd="220.109.179.38" dyno= connect= service= status=503 bytes= protocol=https
172019-09-08T14:12:50.708490+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=sample.herokuapp.com request_id=41f1fad3-6f0f-4165-96cf-a9f8f45dd690 fwd="220.109.179.38" dyno= connect= service= status=503 bytes= protocol=https
182019-09-08T14:13:24.288669+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=sample.herokuapp.com request_id=ffee8bd5-bdf0-4461-8631-273288ad09c8 fwd="220.109.179.38" dyno= connect= service= status=503 bytes= protocol=https
192019-09-08T14:13:24.560277+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=sample.herokuapp.com request_id=2320d4c7-683f-4a89-a950-c59f667e1bc2 fwd="220.109.179.38" dyno= connect= service= status=503 bytes= protocol=https
20app[api]: Build started by user sample@gmail.com
21heroku[web.1]: State changed from crashed to starting
22app[api]: Release v22 created by user sample@gmail.com
23app[api]: Deploy 944688cc by user sample@gmail.com
24heroku[web.1]: Starting process with command `bin/rails server -p 10080 -e production`
25app[api]: Build succeeded
26heroku[web.1]: State changed from starting to up
27app[api]: Starting process with command `rails db:migrate` by user sample@gmail.com
28heroku[run.8405]: Awaiting client
29heroku[run.8405]: Starting process with command `rails db:migrate`
30heroku[run.8405]: State changed from starting to up
31heroku[run.8405]: State changed from up to complete
32heroku[run.8405]: Process exited with status 0
33app[web.1]: => Booting Puma
34app[web.1]: => Rails 5.2.3 application starting in production
35app[web.1]: => Run `rails server -h` for more startup options
36app[web.1]: Puma starting in single mode...
37app[web.1]: * Version 3.12.1 (ruby 2.5.3-p105), codename: Llamas in Pajamas
38app[web.1]: * Min threads: 5, max threads: 5
39app[web.1]: * Environment: production
40app[web.1]: * Listening on tcp://0.0.0.0:10080
41app[web.1]: Use Ctrl-C to stop
42app[web.1]: [a30fa29b-1dea-4937-8103-789db90e1f65] Started GET "/" for 220.109.179.38 at 2019-09-08 14:22:31 +0000
43app[web.1]: [a30fa29b-1dea-4937-8103-789db90e1f65] Processing by ToppagesController#index as HTML
44app[web.1]: [a30fa29b-1dea-4937-8103-789db90e1f65]   User Load (0.9ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = $1 LIMIT $2  [["id", 6], ["LIMIT", 1]]
45app[web.1]: [a30fa29b-1dea-4937-8103-789db90e1f65]    (1.1ms)  SELECT "users"."id" FROM "users" INNER JOIN "relationships" ON "users"."id" = "relationships"."follow_id" WHERE "relationships"."user_id" = $1  [["user_id", 6]]
46app[web.1]: [a30fa29b-1dea-4937-8103-789db90e1f65]   Rendering toppages/index.html.erb within layouts/application
47app[web.1]: [a30fa29b-1dea-4937-8103-789db90e1f65]   Rendered layouts/_subbar.html.erb (0.5ms)
48app[web.1]: [a30fa29b-1dea-4937-8103-789db90e1f65]   Article Load (0.9ms)  SELECT "articles".* FROM "articles" WHERE "articles"."user_id" = $1 ORDER BY "articles"."id" DESC  [["user_id", 6]]
49app[web.1]: [a30fa29b-1dea-4937-8103-789db90e1f65]   ActiveStorage::Attachment Exists (2.2ms)  SELECT  1 AS one FROM "active_storage_attachments" WHERE "active_storage_attachments"."record_id" = $1 AND "active_storage_attachments"."record_type" = $2 AND "active_storage_attachments"."name" = $3 LIMIT $4  [["record_id", 5], ["record_type", "Article"], ["name", "images"], ["LIMIT", 1]]
50app[web.1]: [a30fa29b-1dea-4937-8103-789db90e1f65]   ActiveStorage::Attachment Load (0.7ms)  SELECT "active_storage_attachments".* FROM "active_storage_attachments" WHERE "active_storage_attachments"."record_id" = $1 AND "active_storage_attachments"."record_type" = $2 AND "active_storage_attachments"."name" = $3  [["record_id", 5], ["record_type", "Article"], ["name", "images"]]
51app[web.1]: [a30fa29b-1dea-4937-8103-789db90e1f65]   CACHE User Load (0.0ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = $1 LIMIT $2  [["id", 6], ["LIMIT", 1]]
52app[web.1]: [a30fa29b-1dea-4937-8103-789db90e1f65]   ActiveStorage::Blob Load (1.4ms)  SELECT  "active_storage_blobs".* FROM "active_storage_blobs" WHERE "active_storage_blobs"."id" = $1 LIMIT $2  [["id", 12], ["LIMIT", 1]]
53app[web.1]: [a30fa29b-1dea-4937-8103-789db90e1f65]   S3 Storage (46.9ms) Checked if file exists at key: variants/F1rSs3vKTtUm9nYgf2NpseXK/0893aa954fd492f549fc3bf1b9a82518674f60ebeabbb2562d62d8365be62eae (no)
54app[web.1]: [a30fa29b-1dea-4937-8103-789db90e1f65]   S3 Storage (10.4ms) Downloaded file from key: F1rSs3vKTtUm9nYgf2NpseXK
55app[web.1]: [a30fa29b-1dea-4937-8103-789db90e1f65]   Rendered articles/_articles.html.erb (109.2ms)
56app[web.1]: [a30fa29b-1dea-4937-8103-789db90e1f65]   Rendered toppages/index.html.erb within layouts/application (111.3ms)
57app[web.1]: [a30fa29b-1dea-4937-8103-789db90e1f65] Completed 500 Internal Server Error in 197ms (ActiveRecord: 54.7ms)
58app[web.1]: [a30fa29b-1dea-4937-8103-789db90e1f65]
59app[web.1]: [a30fa29b-1dea-4937-8103-789db90e1f65] ActionView::Template::Error ():
60app[web.1]: [a30fa29b-1dea-4937-8103-789db90e1f65]      6:   <% if article.images.attached? %>
61app[web.1]: [a30fa29b-1dea-4937-8103-789db90e1f65]      7:     <% article.images.each do |image|%>
62app[web.1]: [a30fa29b-1dea-4937-8103-789db90e1f65]      8:       <a href="<%= user_article_path(user_id: article.user.id, id: article.id) %>" >
63app[web.1]: [a30fa29b-1dea-4937-8103-789db90e1f65]      9:         <span class="article-img"><%= image_tag image.variant(combine_options:{resize:"620x324^",crop:"620x324+0+0",gravity: :center}).processed %></span>
64app[web.1]: [a30fa29b-1dea-4937-8103-789db90e1f65]     10:       </a>
65app[web.1]: [a30fa29b-1dea-4937-8103-789db90e1f65]     11:     <% end %>
66app[web.1]: [a30fa29b-1dea-4937-8103-789db90e1f65]     12:   <% else %>
67app[web.1]: [a30fa29b-1dea-4937-8103-789db90e1f65]
68app[web.1]: [a30fa29b-1dea-4937-8103-789db90e1f65] app/views/articles/_articles.html.erb:9:in `block (2 levels) in _app_views_articles__articles_html_erb__819315621334421026_47221539011480'
69app[web.1]: [a30fa29b-1dea-4937-8103-789db90e1f65] app/views/articles/_articles.html.erb:7:in `block in _app_views_articles__articles_html_erb__819315621334421026_47221539011480'
70app[web.1]: [a30fa29b-1dea-4937-8103-789db90e1f65] app/views/articles/_articles.html.erb:2:in `_app_views_articles__articles_html_erb__819315621334421026_47221539011480'
71app[web.1]: [a30fa29b-1dea-4937-8103-789db90e1f65] app/views/toppages/index.html.erb:4:in `_app_views_toppages_index_html_erb__3870430910175573819_69971395429320'
72heroku[router]: at=info method=GET path="/" host=sample.herokuapp.com request_id=a30fa29b-1dea-4937-8103-789db90e1f65 fwd="220.109.179.38" dyno=web.1 connect=0ms service=202ms status=500 bytes=1827 protocol=https
73heroku[router]: at=info method=GET path="/favicon.ico" host=sample.herokuapp.com request_id=20f2a2a0-cb4a-44d5-9754-04d31be77f15 fwd="220.109.179.38" dyno=web.1 connect=1ms service=1ms status=200 bytes=143 protocol=https