Heroku deploy error

Hi, I have some problems: I tried to deploy a nodejs app on heroku, but when I try to open it, I get this error :

2017-06-08T16:08:43.221350+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=xmpp-discord.herokuapp.com request_id=6692a6c4-2563-474d-90e2-1657d83c7393 fwd="92.157.13.75" dyno= connect= service= status=503 bytes= protocol=https

2017-06-08T16:08:43.433802+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=xmpp-discord.herokuapp.com request_id=ab1f0f7d-4eed-4948-94e2-bb80fcd9887b fwd="92.157.13.75" dyno= connect= service= status=503 bytes= protocol=https

My app is a bridge between Discord and XMPP: here It's github base: Github but I ran it and setuped it, it does work in local but I want to run the program all day even if my PC isn't on.

What should or could I do?

If you need more infos tell me !

Thanks

via Pixoyz