Seems like because of the switching on and off the socket, the back up battery in the end staion, (main control) box has been depleted. I would first try to leave the power on for a full day to recharge it, if this dose not work you need to swap the back up battery for a new one, the battery may be dead. The battery is there if you have a power cut the back up to keep the system running.
RSGGO
October 2009