firebase auth internal error signup are blocked web

I'm using firebase auth for a site and chosen password authentication and google signin. When I ran it I got the following:

{"error":{"code":403,"message":"Requests to this API identitytoolkit method google.cloud.identitytoolkit.v1.AuthenticationService.SignUp are blocked.","errors":[{"message":"Requests to this API identitytoolkit method google.cloud.identitytoolkit.v1.AuthenticationService.SignUp are blocked.","domain":"global","reason":"forbidden"}],"status":"PERMISSION_DENIED"}}

I already enabled both password and google sign in from firebase console and also enabled the Identity toolkit API in my Google Cloud Platform console but I still get this error.

Please walk me through the steps I need to do or if there's something I've missed. Thank you very much