Purple autoflower forest

It looks like mildew. I don't think there's any need to panic. What I would suggest is a super heavy defoliation to help air flow and humidity levels and obviously remove any affected leaves or buds. 🌱😁👍

Hey friend, Just a couple things I'm noticing.... firstly can the daytime temp be raised a little bit? I feel like plants down in the 63-60 degree range have a little harder time of it and having some difference from day temp and nights temps is good. Also with the leaves being a bit yellowed did you flush her at all recently just in case of buildup? Maybe that and then come in with a good alternating bloom feed/ plain water schedule. Hopefully she's just a long flowering plant and needs 2-3 weeks more to mature. Good luck with the problem solving, happy growing. ✌️