Common issues related to Volvo ID, along with solutions, are described here.
If the centre display's response is slow, it might help to restart the display. A restart may also fix the problem if you are experiencing issues with e.g. Bluetooth, navigation or connectivity.
In some cases, the charging of your car doesn't start when you have set the charging timers in the charging box. This problem occurs when you are using a charging box with smart charging functionality that isn't compatible with your car.