This happens on some mobile phones when you try to take action to change Carsifi properties via the companion app. This happened because the companion app can't connect to the Carsifi adapter service via Bluetooth.

Warning: Make sure you have the latest firmware version on your adapter and the latest version of the companion app!!!

How to fix(you can do each of these actions separately):

1. Try again to invoke action.

2. Turn off Bluetooth on your phone and turn on it again.

3. Reboot adapter and mobile phone

4. Wait until the Carsifi adapter connects to your phone and try your action again.