Light and heat stress mature pistils on the 24 day of flowering

Ochhh aye the nooo laddie. DWC, not my fortay. I guess if the problem was light and heat then you could give her less. But that looks like a combination of problems. O Oxidative dmg, burning. Hard to pin point. Sure she is getting her oxygen well supplied? Hopefully some more experienced growers familiar with dwc can help. She was beautiful too, such a shame. Hope you get the help you need. 🙏