This is a picture a feew hours after giving the plant 36 hours of total darkness before switching to flowering
Leaves are dry and crispy. It kinda looks dead
HELP !!
To be honest, 36hours darkness before inducing flowering does nothing more than stress the plant.
If you contained it in some form of box where the heat got out of control then this would cause the medium to loose too much moisture and if left unchecked the plant dries up.
I also can see a leafminer issue on the lower leaf in the pic before 36 dark.