LF Jack Error on Lippert Ground Control TT Leveling System

[ChuckHam]

Good evening all,
I have a 2017 Keystone Laredo 335MK travel trailer with the Lippert Components TT Leveling System. I was auto-leveling my TT when everything stopped working and kept getting a "LF Jack" Error. It said to retract everything to clear the error. When I try to auto retract, all the lights flash and the panel turns off. I can retract them with the panel arrows one jack at a time or both fronts or both rears. But when one gets to fully retracted point, all the panel lights flash and it turns off.

I did put everything down about 6 inches and tried to auto retract, but when I do all the lights on the panel flash and the unit powers off. I removed all power to the unit for about 30 minutes to try and clear the error, but it will not clear.

What else could be the problem?

Thanks!