Error on Mac OS Monterrey

When I open Akku, i get this error: 
_**The operation couldn’t be completed. (io_jari_AkkuHelper.BluetoothHCIError error 5.)**_
<img width="263" alt="Screen Shot 2021-10-25 at 4 31 03 PM" src="https://user-images.githubusercontent.com/810823/138774005-b21f3c27-7828-4427-81bc-b2805ef44adc.png">

This error is on Mac OS Monterrey 12.0.1

