Urgent tips pls

I top dressed her abour a week & 1/2 ago she was looking fine I got a bit busy this week tho and didn’t water her for about 4 days but she was still looking good a little yellow but looking healthy I look in the tent this afternoon and she looks like she’s dying. Picture below

Your plant looks hungry, what have you been top dressing with? You only have the pot 1/2 full of soil. I would add another several inches of the original soil you started with and water it in to start if it has nutes.