Leaves Curling.

AND DONT SPRAY YOUR LEAVES ! A light misting is fine in the morning it acts like morning dew but if your spraying them with some kind of Foliar spray you can be causing more harm than good . I’ve seen it first hand

Hello! I think you might have overdone it with the fertilizers or the water! One of these things, or both, you've used too much. If it's water, let the substrate dry out more before watering again! If it's fertilizers, you'll need to reduce the fertilizers or not fertilize next week. If it gets worse, you'll have to do a flush; it depends on several factors, you can clear your doubts on Google. As for the small circular spots, I'm unsure. Is it just one leaf? I don't see the same symptom on other leaves! I don't know what that could be; it might be water droplets that you've left from spraying the plant too often, and the light has burned the leaf due to the magnifying effect they create. It could also be a calcium deficiency, or maybe a pest? Mainly, I would focus on the proper growing conditions: temperature, humidity, air circulation, light height, pH regulation of the water, EC if possible, etc. The problem can come from many places; you'll need to provide information about your grow room as exhaustively as possible and rule out some possibilities.

I second exactly what @hashy wrote, he is spot on. To solve this give them plain ph’d water until things improve and in my opinion you really don’t need to be spraying them at this stage unless you have a bug problem. And if you do spray them right before lights out and leave extraction and fans on.

It looks like you may have nitrogen toxicity on the plant, dark green curling leaves. The rust coloured spots on the leaves could be from being misted and acting like a magnifying glass. Your not running a diary so it's a bit hard to fully help out.