First that plant is in full blown flowering stage, was that intentional? When they are flowering they need a different balance of nutrients as the flowers need more P and less N. I'd suggest flushing it for a few days, let the soil dry then increasing the P levels. IF you plan on reverting it back to the veg stage you need to get it under 24 hours of light but it will take a while and will set back the overall growth by about a month. You could give it a light foliar spray with diluted nutrients.