I have a 2017 Camplite 21RBS and the storage compartments use a 'Global Link G391' key. Because of the same model year I would assume yours would need the same key. At one time I had misplaced my keys and talked to my dealer on the phone. They mailed me a 'Master key' that opened everything but the deadbolt on my trailer.
Maybe your dealer can do the same - that's a lot cheaper then the locksmith...
Maybe your dealer can do the same - that's a lot cheaper then the locksmith...