2008 prius combo meter - humidity?

My vehicle just had the dreaded dash go dark and unable to turn the car off. Wondering if it is due to issue responding to humidity? I've been storing some lumber in my car for a couple weeks that was damp from the store while working on building a fence. Started to notice that inside windshield would become very, very damp and then the control panel bubbled up on the surface (still damaged). Now the whole dash lights going dark and am wondering if it is due to the moisture that must've been trapped inside and what I can do to fix it now or need a whole new combo meter? (ps - lumber has now been removed from car - a little to late perhaps)