I have Panasonic Fax machine KX-FPG 377. so far there is no problem, all work well, but yesterday, I want to move this machine, and I unpluged the socket from the power outlet, but when I put it in new palce, and I plug it into power outlet, the machine was off, there is no sign, in the screen, and all was off. I have check all the cover, was firmly close. What should I do?