2003 Dodge Grand Caravan body & structure problems

About the beginning of october we noticed the passenger floor area began to have white spots. I tried vacuuming the area but the spots quilky reappeared and grew larger. Then I realized the spots were mold. Yesterday, I pulled back the carpet. To my horror, the underside of the carpet was engulfed in a white fuzzy mold. The mold was growing in the carpet, the underlayment and up the underside of the dash to a round plastic area. I believe this is either for the AC or heater or both.

Tl* the contact owns a 2003 dodge grand caravan. While driving from the gas station at 5 MPH, the brakes failed to work without warning. The contact also noticed smoke coming from the front of the vehicle. The vehicle was taken to an independent mechanic on highway 52 in florida where it was diagnosed that the frame that held the motor needed to be replaced. The vehicle was not diagnosed or repaired. The manufacturer was not contacted and was not aware of the failure. The approximate failure mileage was 98,000.