I hate to say it but you're probably not going to be using this camper on this trip.
I'm not familiar with Palomino's new style lift system. Mine is like Rbertalotto's, the old Heco lift system.
One jack is in cabinet behind the kitchen sink, the other is in the cabinet in back. Get in there and LISTEN while someone cranks. Follow the popping noise.
Are both jacks making the same popping noise, or is the noise coming from one place?
Both jacks popping tells me they're stripped out and probably need to be replaced. On the other hand if the popping noise is coming from one location, that tells me some connection has broken or come loose, and you might be able to salvage the trip if you can isolate it.
It's going to require getting in there and looking though.