Get something like this:
```
2016-01-25 13:33:24,434 ERROR [xdi.oxauth.authorize.ws.rs.AuthorizeAction] There is already existing session which has another acr then basic, session: xxx-xxx-xxx-xxx
2016-01-25 13:33:24,434 ERROR [xdi.oxauth.authorize.ws.rs.AuthorizeAction] Please perform logout in order to be able login with new ACR value.
2016-01-25 13:33:24,434 TRACE [xdi.oxauth.authorize.ws.rs.AuthorizeAction] permissionDenied
2016-01-25 13:33:24,434 DEBUG [org.xdi.oxauth.model.error.ErrorResponseFactory] Looking for the error with id: access_denied
2016-01-25 13:33:24,434 DEBUG [org.xdi.oxauth.model.error.ErrorResponseFactory] Found error, id: access_denied
```