She looks naked at least 2 maybe 3 weeks left before harvest i guess she has some defc or whats the problem she lost lot of leafs and got yellow

Plant is in lockout, struggling on all NPK , i can bet your ph for long time was off. Till you sort it and start watering when pots are light, nothing will change.

In week 4-6 of flower you shouldn’t be worried about a N deficiency. Probably need more pk. Not sure if it’s lock out or ph issue. I’m guessing your ph is off. Calibrate your meters and retest your solution ppm/ec and ph. Keep Ppm/EC under 1000ppm 2 EC while you straighten it out. remove those bad leaves.

Looks like your plant needs potassium and magnesium. That's why you got purple stem, yellowing and curling leaves and underdeveloped buds. If your pH is good just use some extra PK and calmag fertilizer.

Looks naked because you defoliated it. Leave more leaves... don't cut them off just because "bro-science" says to. Which also made it more susceptible to a multitude of risks, including realted to nutrients. your overall ec may be okay, but the ratio of nutes is not. Fromthis far away picture, looks like a nitrogen deficiency.

If in doubt, maybe fertilize the plant via the leaves with a foliar fertilizer. Maybe get one with not only nitrogen, but also other macro- and micronutrients.

Ph or underfed with nutrients/wateramount. Ph issues slower the waterintake of your plant or theres simply not enough to drink for her. Nutrients in the water or water itself

Looks like a nitrogen deficiency to me. Make sure to have enough nitrogen in the soil and th eright pH, otherwise the plant can't get it. Make sure the pH meter is working correctly and is calibrated right.