Yes! If you experience that the Lildogen is not working properly, you can try holding down the button on the device for 5 seconds. Release, and do the same thing again. This will restart the device.
If that doesn't work, you can also reset it as follows: double-press the button to activate the light and then hold the button until the light goes out again. This takes just under a minute, and the device will then restart with two green flashes. If it is still blue, you can double-press it again.