Got rid of fatal when there's no default device
Got rid of fatal when there's no default device

mgranberry/ttn,jvanmalder/ttn,TheThingsNetwork/ttn,jvanmalder/ttn,TheThingsNetwork/ttn,LoRaWanSoFa/ttn,TheThingsNetwork/ttn,mgranberry/ttn,mgranberry/ttn,LoRaWanSoFa/ttn,jvanmalder/ttn