AsNoriuanswered grow question 3 years ago It's pH issue, she will go to some lockout or deficiency if you keep bad watering regime or will put tap water without using dechlorinator and later adjusting pH.
Let her dry each time before watering, pot has to be light.
Don't feed anything till you see new grow starting to pop everywhere.
Looking at dry and crispy leaves I would guess you have too much or a lot nitrogen inside of pot and/ or keep humidity too low, she needs 70 Rh now.
Good luck !