Can this be corrected? I still have two months to go.

Yes, stop feeding it too much!

N excess, P,K lock Ca deficiency... to much problems, but u can try - flush then feed with bloom fert (stick to 700-900 ppm not more) - check ur tap water ppm and adjast ur Ca Gl, this one can be a good way to get some experience (how to fix overfeed)

🌱 Plant & Medium What strain (auto/photo, indica/sativa leaning) and how old is the plant? What medium are you growing in (soil, coco, hydro, mix)? What brand/type of soil or coco (any pre-fertilized mix)? 💧 Water & Feeding What is your water source (tap, RO, distilled)? Do you use CalMag? If so, how much and how often? What nutrients are you feeding (brand, product line)? At what dose compared to the manufacturer’s schedule (full, half, custom)? What is the EC/PPM and pH of your nutrient solution? Do you check runoff EC/PPM and pH? If so, what are the latest readings? 🌡️ Environment What are your average temps (day/night)? What is your relative humidity (day/night)? Do you monitor VPD? What is your light intensity (PAR/PPFD if known, or hanging height & power %)?