# Heroku App crashes

**URL:** <https://community.plotly.com/t/heroku-app-crashes/24185>\
**Category:** Dash Python\
**Created:** [June 5, 2019, 9:03am UTC](https://community.plotly.com/t/heroku-app-crashes/24185 "2019-06-05T09:03:31Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![lfink](https://avatars.discourse-cdn.com/v4/letter/l/c5a1d2/32.png) [@lfink](https://community.plotly.com/u/lfink)\
**Post date:** [June 5, 2019, 9:03am UTC](https://community.plotly.com/t/heroku-app-crashes/24185/1 "2019-06-05T09:03:31Z")

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Hello everyone,

somehow I currently have fuckups with my Python app deployed to Heroku. It was working just fine for several days then now somehow the app crashes when trying to reach it. I get the error

`> 2019-06-05T08:42:49.422618+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=foobar.herokuapp.com request_id=950da4f1-b8e4-4a45-a514-c473dcf56eff fwd="188.195.115.27" dyno= connect= service= status=503 bytes= protocol=http`

Any idea how to solve this? Somehow it’s trying to connect to favicon but this is not working…

Thanks a lot!