Error on rest api /oauth2/auth

What are the parameters needed to initiates an authorize code.
http://hydra/oauth2/auth?client_id=…&…

I got this error when I tried this http://localhost:4444/oauth2/auth?client_id=my-client&client_secret=secret&redirect_uri=http://localhost:3300/login&scope=openid&response_type=code. I have already create the client.

hydra client get my-client to debug, check that the settings are set properly

and check the logs of hydra