m0useanswered grow question 3 years ago looks like you first started having issues aorund week 5, and got worse from there.
did you change anything drastic that week?
Can you confirm what you used for potting it up?
was it a branded bag of soil?
most of your dairy entries do not list anything else with your environment, RH, temps, light height, PH, EC.
you want temps between 24-26c, good airflow, ph of 6.2-6.5 with biobizz and soil. RH aorund 45% in flower and your lights will have to know its model for hang height.
Looks to be a multisymptomatic problem and need to try one thing at a time.
I'd also let the feeding solution sit out for 24hrs before adjusting PH, BioBizz tends to trend ph downwards.
Good Luck!