title: App works in development but Error H10 after deployment
body: <p>I deployed my app to heroku and i get H10 error log when I run the <code>heroku logs --tail</code> command.
  The error log:</p>
  <pre><code>2020-11-21T12:40:27.833034+00:00 heroku[router]: at=error code=H10 desc=&quot;App crashed&quot; method=GET path=&quot;/&quot; host=uploaq.herokuapp.com request_id=d8563da4-4cfc-43d6-ad04-cb95d8fe3047 fwd=&quot;197.210.227.20&quot; dyno= connect= service= status=503 bytes= protocol=https
  2020-11-21T12:40:28.019331+00:00 heroku[router]: at=error code=H10 desc=&quot;App crashed&quot; method=GET path=&quot;/&quot; host=uploaq.herokuapp.com request_id=c5a1a84d-3c79-4857-ab38-9f15a16b12da fwd=&quot;197.210.54.197&quot; dyno= connect= service= status=503 bytes= protocol=https
  2020-11-21T12:40:28.428222+00:00 heroku[router]: at=error code=H10 desc=&quot;App crashed&quot; method=GET path=&quot;/favicon.ico&quot; host=uploaq.herokuapp.com request_id=be4ba73e-ebf4-40ac-b6a2-3c07516ae9e0 fwd=&quot;197.210.55.57&quot; dyno= connect= service= status=503 bytes= protocol=https
  </code></pre>