[SSO-OAuth-keycloak] Need help troubleshooting

[MaxWaldorf]

Hi there,

I am trying to customize plugin: https://github.com/julianlam/nodebb-plugin-sso-oauth

I have made my own:
https://github.com/MaxWaldorf/nodebb-plugin-sso-keycloak

I know the sso works since I am testing it with other systems like wordpress, etc...

But even though I enter the right info in config file, I don't succeed to anything so far...

Here is my code in config file:

    "oauth": {
        "id": "my_id",
        "secret": "my_key",
        "type": "oauth",
        "name": "nodebb",
        "scope": "email profile openid",
        "auth2": "https://<SSO_domain>/auth/realms/Public/protocol/openid-connect/auth",
        "token2": "https://<SSO_domain>/auth/realms/Public/protocol/openid-connect/token",
        "user": "https://<SSO_domain>/auth/realms/Public/protocol/openid-connect/userinfo"
    }

The login page shows and I am able to enter my credentials but... After that, I receive an error:

Internal Error.

/auth/nodebb/callback

undefined

Am I missing something?
I feel I don't understand correctly the scope part...

If anyone has an idea, it would be greatly appreciated...

Cheers