Invalid simulation configuration

{
  "error": {
    "type": "request_error",
    "code": "notification_simulation_run_configuration_conflict",
    "detail": "Simulations with invalid configuration cannot be run.",
    "documentation_url": "https://developer.paddle.com/errors/notifications/notification_simulation_run_configuration_conflict"
  },
  "meta": {
    "request_id": "00000000-0000-0000-0000-000000000000"
  }
}