Why you feeding high N guano during flower?
I see a reveg, or some other hormonal change. Could be that N and a light leak?
Quit the guano, and make sure you have no light leaks. If you don't have an adequate source of N, find something less hot and steamy. Feed bloom nutes. Good base nutes will often have some amount of N anyway.
Provided there's no damage, you should be fine. May take a couple weeks to get back to flower. And you may have a much different plant structure after.