Is she going to die? Please help?

I have a 24 day old auto mazar, he has been doing fantastic up until today I came to check on her and she was all droopy and leaves curled under with a salt like substance on her leaves, so I gave her a liter of plain water yesterday and sprayed her leaves with plain water and come back down this morning and she looked like this..... Any help would be great as I would like her to make a speedy recovery
This was her yesterday

And today

Looks like it melted under hot conditions, did your fans fail? was it hotter yesterday?

Well I lowered my 600w hps to about 16 inches away from her? Should I move it up to around 20 inches? Thanks

Move it up and when did you water last? Looks kinda thirsty.
Yeah you have light burn on the tallest part of the plant and for sure that got the heat stress going.

I have her 1 litter of water that's been in a bucket with the lid on for around 3 days, I drenched her leaves with spray yesterday and she has this salty stuff on some of her leaves and stems il move the light up and see what it does thanks for the reply brother

Watered her with 1 liter yesterday* think she will pull through?