air conditioner leaks

Hi, (Apologies in advance if this is a silly question.) We just got back from a very hot trip to Texas and New Mexico (crazy, I know) and naturally we made liberal use of our ProAir 12V AC. It worked very well for the first couple of weeks then we noticed some internal dripping from the vents...

My Roadtrek is on a 2002 Chevy Express cutaway chassis. See subject and attached pics. Been parked on a a slight incline for the past 2 days nose down. It's been drizzling off and on. No big downpours or torrents. I have NOT been using the AC. I woke up this morning with the condensation...