eb deploy: Impaired services on all instances.

Hi,

I'm new with Elastic Beanstalk and i did a short API in node js and express. It works well in debug but when i deploy it. The application become "DEPRECATED" in my console with this error

Impaired services on all instances.

Here is my package.json

{
  "name": "node-express",
  "version": "0.0.0",
  "private": true,
  "scripts": {
    "test": "node app.js"
  },
  "dependencies": {
    "aws-sdk": "^2.1260.0",
    "body-parser": "^1.20.1",
    "cookie-parser": "~1.4.4",
    "cors": "^2.8.5",
    "debug": "~2.6.9",
    "dotenv": "^16.0.3",
    "express": "~4.16.1",
    "google-spreadsheet": "^3.3.0",
    "http-errors": "~1.6.3",
    "jade": "~1.11.0",
    "morgan": "~1.9.1",
    "nodemon": "^2.0.20"
  }
}

I'm not abble to found more detailled logs