They do not like cold, dark, and wet. Do you have this under gro lites? If so, the humidifier-light blocker is your problem. Basement gro lites should be run in a cool (50 - 60 degree F) area. Under these conditions, divinorum and other plants will need to be placed quite near the fluorescent lamps. I've used reflectors made of plywood and/or cardboard painted white. These provide additional, more efficient, and even light and also boost the local heat and humidity to comfortable levels.

well i have it right under the light (within a foot or two) so it stays warm. i'll try to take the cover off for a while. thanks for the help.