fridge freezer isnt getting cold?

american style fridge freezer embraco admiral 2
my f/freezer has suddenly stop making the normal running sound and the fridge side isnt getting cold,i notice the plug was slightly out at the bottom of the item as we have moved it forward a couple of time ,so i sercuered the plug,back in the socket,the fan is running and the lights are on also the freezer part has got a little colder but the fridge still isnt getting cold also the drinking water isnt working
please help