The misters are supposed to spray directly on the foliage right?
Am I missing something?
First off I would suggest doing some serious research into growing methods. You seemed to have confused methods somewhere. Aeroponic growing is not about misting the foliage, its about misting the roots. There is no way to combine DWC and aeroponics. What a proper aeroponic system is is a system that allows the root system to be exposed to air while staying moist and taking up the nutrients from the mist directed at the roots. In fact once in flowering you want to keep your foliage as dry as possible, or yes, you will see mold.
You may not be seeing mold because it is far to cold for it to grow. Your cold temperatures are definitely hurting your plant. While you do not want your water to be too warm you also do not want it to be too cold. Cold water does not mean more dissolved oxygen. You want to keep the room temperature around 75 degrees Fahrenheit and the water between 65 and 70 degrees. And get your humidity down, 98% is far too high, I am surprised its not raining in there with a humidity that high.
This is obviously a first attempt and you should use this as a learning experience more than anything. So like I said do a lot more reading and research, keep trying methods to find what works best for you and your plants, and you will eventually have good results.