[keycloak-user] internal server error on /permission endpoint

Hi all, I'm using keycloak 4.5.0-FINAL in docker ( https://hub.docker.com/r/jboss/keycloak/) I try to issue a permission ticket. Therefore I have requested a PAT for the client "resource-provider" and send this along with the following json body (with and without scopes). I received a http-500 internal server error. without scopes:{ "resource_id": "resource-provider" } with scopes: { "resource_id": "resource-provider", "resource_scopes": [ "private-data.read" ] } Did I miss something? I also tried to investigate the log file (/opt/jboss/keycloak/standalone/log/server.log) and increase the log level in standalone.xml, but it seems that nothing is written to that file. I restarted jboss with jboss-cli.sh /:reload. Do you have any suggestions for me? Kind regards Tobert