Heroku error on Rails app : error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=

Question

How I can solve the error. I see build success and no error. But I am not able to see the rails app working on the link.

I see these lines in the log file :

heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=myapp.herokuapp.com request_id=some_id_here fwd="47.247.8.241" dyno= connect= service= status=503 bytes= protocol=https

Answer 1

$heroku restart

And if it didn't work use

$heroku run rails console 

will give you the details on why the app has crashed