rails でラインボットを作成し　heroku run rails db:migrate　をした後に開くと
herokuでエラーが出ました。
プログラミングは初心者で、herokuは初めて使いました。

heroku logs --tailをしましたがサッパリ分からないので教えていただけるとありがたいです。

エラー箇所

2019-06-05T04:00:57.636475+00:00 heroku[run.1144]: Error R13 (Attach
error) -> Failed to attach to process
2019-06-05T04:00:57.640437+00:00 heroku[run.1144]: Process exited with status 128
2019-06-05T04:01:22.097112+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=nagattyo-bot.herokuapp.com
request_id=c5bd5c31-1abb-440c-bb50-a3e9c8353f61 fwd="133.68.125.22" dyno= connect= service= status=503 bytes= protocol=https
2019-06-05T04:01:23.712926+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=nagattyo-bot.herokuapp.com request_id=7fd65adf-a2b4-40bf-8308-71df992dbdad fwd="133.68.125.22" dyno= connect= service= status=503 bytes= protocol=https
2019-06-05T04:03:15.743241+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=nagattyo-bot.herokuapp.com
request_id=8d78428e-0ec5-44db-bbb3-2fd46f811133 fwd="133.68.125.22" dyno= connect= service= status=503 bytes= protocol=https
2019-06-05T04:03:16.911264+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=nagattyo-bot.herokuapp.com request_id=d975fc64-7ec8-4230-9b8d-a23712d1417b fwd="133.68.125.22" dyno= connect= service= status=503 bytes= protocol=https
2019-06-05T04:06:05.557370+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=nagattyo-bot.herokuapp.com
request_id=4354370c-02c0-43b9-9237-f87ef6a8eb13 fwd="133.68.125.22" dyno= connect= service= status=503 bytes= protocol=https
2019-06-05T04:06:06.603297+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=nagattyo-bot.herokuapp.com request_id=930336bc-27df-41ec-8600-c7e033915edc fwd="133.68.125.22" dyno= connect= service= status=503 bytes= protocol=https
2019-06-05T04:06:09.129977+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=nagattyo-bot.herokuapp.com
request_id=1da08ba7-8002-47dc-a944-e0e400c08f65 fwd="133.68.125.22" dyno= connect= service= status=503 bytes= protocol=https
2019-06-05T04:06:09.995346+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=nagattyo-bot.herokuapp.com request_id=9f278771-92e4-432c-a0c7-d7bc49ac891d fwd="133.68.125.22" dyno= connect= service= status=503 bytes= protocol=https
2019-06-05T04:15:17.165180+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=nagattyo-bot.herokuapp.com
request_id=261cb291-e446-4e33-9b6a-b64384900259 fwd="133.68.125.22" dyno= connect= service= status=503 bytes= protocol=https
2019-06-05T04:15:19.101927+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=nagattyo-bot.herokuapp.com request_id=53a9b1fa-42ee-4047-8a97-24cb9d266eae fwd="133.68.125.22" dyno= connect= service= status=503 bytes= protocol=https
2019-06-05T04:20:00.782183+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=nagattyo-bot.herokuapp.com
request_id=a4b0f2d6-7222-48e7-b138-408c19f0800e fwd="133.68.125.22" dyno= connect= service= status=503 bytes= protocol=https
2019-06-05T04:20:01.416771+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=nagattyo-bot.herokuapp.com
request_id=ee43317d-537a-464c-85dd-f594ed52501b fwd="133.68.125.22" dyno= connect= service= status=503 bytes= protocol=https
2019-06-05T04:20:02.688611+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=nagattyo-bot.herokuapp.com request_id=816ad3c5-8312-4adb-9fd5-f4945374db36 fwd="133.68.125.22" dyno= connect= service= status=503 bytes= protocol=https
2019-06-05T04:20:04.094247+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=nagattyo-bot.herokuapp.com
request_id=421f8776-e659-450c-ba2b-307a69d6d7d3 fwd="133.68.125.22" dyno= connect= service= status=503 bytes= protocol=https
2019-06-05T04:20:05.526379+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=nagattyo-bot.herokuapp.com request_id=323abb81-5042-4b11-955e-ec22df885c7d fwd="133.68.125.22" dyno= connect= service= status=503 bytes= protocol=https