*** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'State restoration of CBCentralManager is only allowed for applications that have specified the "bluetooth-central" background mode'

Solved the problem by adding the properties below

<key>NSBluetoothAlwaysUsageDescription</key>
<string>The app uses bluetooth to find, connect and transfer data between different devices</string>
<key>NSBluetoothPeripheralUsageDescription</key>
<string>The app uses bluetooth to find, connect and transfer data between different devices</string>
<key>UIBackgroundModes</key>
<array>
<string>bluetooth-central</string>
</array>