unexpected error reading return code: strconv.Atoi: parsing "": invalid syntax. Using 404

[bumi]

[bumi]

error still persists: https://app.datadoghq.eu/logs?query=service%3Anginx-default-backend&cols=host%2Cservice&context_event=AYhTpxxlAADrci6HVsBKsgAK&event=AgAAAYnO3A7JjKx5ewAAAAAAAAAYAAAAAEFZbk8zQkt4QUFBRXNVSmNicV9wOWdBQgAAACQAAAAAMDE4OWNlZTAtZmIxNC00MGQ0LTliMmQtODYzZjg2ZmEwMDYz&index=%2A&messageDisplay=inline&stream_sort=time%2Cdesc&viz=stream&from_ts=1683109617532&to_ts=1685701617532&live=true

[bumi]

it's from here: https://github.com/getAlby/nginx-default-backend/blob/main/main.go#L141-L145

[bumi]

do we need the log?