Plant dieing why

Hello.. Hope you are well.. Sorry to see your girls are suffering.. They have nutrient burn.. Unfortunately once she has this much toxicity in her she will very rarely bounce bk wen in full flowering.. U have definitely overfeed ur girls.. In pic 3 i see in bottom right hand pot she has wet leaves.. Dont let her leaves get wet during lights on.. This will burn her aswell.. Its like a magnify glass in the sun.. Spray at nite n let dry b4 lights on.. If possible try to raise ur pots off the floor so they dont sit in any run off feed.. Just keep giving her plain ph'd water @6-6.5 n give her much less each watering but more watering periods each day if possible.. Stay safe n gud luck on future gardens.. 👍🍀