code: def _check_error_response(self, response, context):
          
          if "error" in response:
              satosa_logging(logger, logging.DEBUG, "%s error: %s %s" %
                             (type(response).__name__, response["error"], response.get("error_description", "")),
                             context.state)
              raise SATOSAAuthenticationError(context.state, "Access denied")
docs: Check if the response is an OAuth error response.
          :param response: the OIDC response
          :type response: oic.oic.message
          :raise SATOSAAuthenticationError: if the response is an OAuth error response