thanks so much - did you set your Prefect Cloud API key? this would explain 404
I think the issue is that you are using a recipe for Prefect Cloud and you try to run it for OSS with ephemeral API: httpx.HTTPStatusError: Client error '404 Not Found' for url 'http://ephemeral-orion/api/flow_runs/ef1e3069-e611-4dda-ad54-11c0ba4af221'
for OSS, I’d recommend following this setup:
https://discourse.prefect.io/t/running-prefect-2-with-docker-compose/1516