Whats wrong with my plant!?

My plant has been flowering for about 4 or 5 weeks now. It was
previously outside during veg, so then i brought it inside to flower.
Im worried that the inside humidity may be causing an issue, i am aware
that i overnuted since this is my first grow, so i flushed and it seems
to be recovering a bit, except the whole top of one side just randomly
died and i am unsure why. If anyone knows why or can diagnose any other
problems my plant has i would be very greatful.

Nute burn. Flush with 3x the pot size of water (e.g. if the container is 2gals flush with 6gals water). The dead side was too far gone. Cut it off.

l0l, you fucked your plants man

Yep! I knw tht lk as I once did tht and will never do again! Would have never happened had I kwn hw 2add nutes. I just poured a mix of nutes within my pots with0ut water, 0h b0i! But after that I never had maj0r problems as I am constantly studying as I gr0w along. I would say just start 0ver! the time it is g0ing to take to recoup isn't worth it unless you wanna keep it while gr0wing more. You can dust it 0ff & try again!