Hello, we have a production and a staging server, both with the same configuration.

However the staging one doesn't work, I receive and application failed to respond error.

I'm not sure why it works in production but not the staging service.
When deploying there are no errors in the logs, the server appears to be running fine.

{
    "status": "error",
    "code": 502,
    "message": "Application failed to respond",
    "request_id": "baArCGB7SpGXKgKlj0a7aQ_1654200396"
}

Can someone help?