I am setting a different hostname(other than localhost) to my react app, and then doing npm start which is not working.

Attempting to bind to a HOST environment variable: og.local
If this was unintentional, check that you haven't mistakenly set it in your shell.
Learn more here: https://cra.link/advanced-config
Invalid options object. Dev Server has been initialized using an options object that does not match the API schema.
 - options.allowedHosts[0] should be a non-empty string.

this is linux system and I have already edited my hosts file to serve this is what i did in package.json file

 "start": "HOST=og.local  react-scripts start",