Burned or finishing early?

Pic 2 shows symptoms of botrytis/bud rot, better check them real close and asap. In case you find any, removal is the only option to protect what is still growing.

Hi there. Is that bloom nutrient for soil or hydroponics, if its for hydroponics then you need one really for soil. Autoflowers don't like to strong a feed so it's advised to do a ph watering inbetween feeds.

Check your run-off water. If it has low PH, your plant doesn't aborb the nutrients proper. Check your EC as well, if you have high EC in your runoff sample, you have been overfeeding her and she will burn and no longer take nutrients. If this happend, your pot might be heavy as well and your medium will be full with to many nutrients and getting salty. You can always flush her with alot of water with the right PH and no nutrients in it. It will take some days before your plant will drink it all. Also those leaves will not heal and probably fade away. If you don't want this to happen again, make sure you feed your plants with only water sometimes to make sure your EC will be perfect, Never put your fans or lamps to close to the plants. Goodluck.