The main source of leaking could be the water reservoir. A couple of different ways can confirm this. First, remove the water tank and check the well underneath; if there is a water buildup, leakage can be caused by a broken or faulty nozzle. In that case, you can contact customer care for a replacement reservoir.
Or you can also repair it at home by placing an O-ring around the nozzle. The second issue can be a crack in the reservoir itself, which could be tested by filling it with water and holding it over the sink. If it leaks, call customer service for replacements.