Check the power cord. Is it damaged or out of date? If you see obvious signs of a broken power cord, you should carefully unplug it and replace it with a new one.
It is also worth checking the electrical socket. It should also be replaced if there are visible problems.
If you do not find any problems with the socket or power cord, try unplugging the fridge from the socket for a few minutes.
If the problem still appears after switching on, choose the “System Check” to see additional errors.