at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=todo-backend-lokeshnn.herokuapp.com request_id=dfa1fc8d-23ac-4938-a2a2-80c2e8b2dc1e fwd="49.37.219.223" dyno= connect= service= status=503 bytes= protocol=https code example

Example 1: at=error code=H10 desc="App crashed" method=GET path="/

Logged in as admin, 
inside the App in question, 
the “More” button in the upper right has a “Restart all dynos” option.

Example 2: at=error code=h10 desc="app crashed" method=get path="/" host

Found solution for me here: Heroku + node.js error (Web process failed to bind to $PORT within 60 seconds of launch)

In my case my app crashed because I was hard setting the PORT, instead of using the port that heroku dinamicaly sets, which can be accessed with process.env.PORT

app.listen(process.env.PORT || 3000, function(){
  console.log("Express server listening on port %d in %s mode", this.address().port, app.settings.env);
});

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