Fridge not cold but freezer is working fine

Kenmore Elite 596.75523400 was working fine and now the fridge is not cold at all. The electricity went out for about 10 minutes, but other than that, nothing unusual has happened. The unit sounds the same as before, just doesn’t get cold. The damper is opening at the top but there is no cold air coming out.
This happened when I first got it. I tried to unplug and reset the thermostat controls several times and on one of the times, it just started working.
Any advice?