Bro, greetings! 👋
At this stage of flowering, she doesn't need any nitrogen in the watering at all! 👆
Excess nitrogen blocks the absorption of phosphorus - pale, dying leaves with red stems!
Solution to the problem:
get rid of the grow additive in the watering - (0ml/l);
increase the bloom additive - (4ml/l).
✊😇👌
Good luck, bro!