Gotta disagree with Mrweeds here, looks like the genetics are a bit sensitive to environmental factors , right now youre at 70rh which is fine but also at 27C, which can be fine but basically not for this genetic. So it's extra sensitive and the combo is too much for it. If you reduce the temperature to 24/23C it just might bounce back . You can tell by the way it's wilting, if it was nutrients you would see other symptoms. Hope this helps ! 🚀