In the front compartment where the landing gear is on the back wall is a group of 4 or 5 grey circuit breakers. I believe 2 or 3 of them are manually resetable with a tiny black button on the side. One of these is power for the level system and may be tripped. You will still have power to panel but not the legs.
Perhaps better that it was not working when you hit “Auto Retract All”. I was told by my tech at PDI, that on the hydraulic system, that function will drop the jacks all the way down to the ground…perhaps damaging the underside components on some fifth wheels. You can accomplish everything you need by manual retract.