why it happend

why in my plant leaves getting cryspy and my flower is getting yellow is it normal or what should i do i need a opinion

R U about 4 or 5 weeks into flowering? Your fan leaves will start turning yellow/brown and curl as the flowering progresses. Eventually ur fan leaves will start falling off. So far I'd say that your doing a good job. Hell I've seen much worse. Start lurking around the forums and look at other grow threads, u can learn a lot. Good luck

could be nute overdose,, for some reason i wana say light deprivation though,,