Hello. Two outlets stopped working today. One is behind the refrigerator, and the other one is across the wall in the dining room (not directly on the other side of the refrigerator, but rather across the wall on the side of the refrigerator, about 8 feet away ---the outlets are on the same main wall, with a smaller wall running perpendicular between refrigerator and dining room). How does an outlet stop working? Is this a fire hazard? Do I need to get it fixed? I plugged the refrigerator into a different outlet and it's fine, and the other outlet was just used for a lamp and an answering machine, and I've plugged those into a strip with my computer at another outlet. I am low on money so I hoped I could avoid calling in an electrician if possible. Thanks!