TypeError: results is not iterable

```
[05/05/2023, 13:18:51] TypeError: results is not iterable
    at Prices.at (file:///var/lib/homebridge/node_modules/homebridge-nordpool/node_modules/nordpool/lib/prices.js:22:24)
    at processTicksAndRejections (node:internal/process/task_queues:95:5)
```