It's not the heat, it's the influence of direct sunlight on a still small plant! 👆 At this age, it’s enough for her to have indirect sunlight, she needs to develop in the shade. When she grows 5 pairs of leaves, then you can take her out into direct sunlight! 👌 No worries, she will live on, she’s just not ready for such active processes in her tissues that direct sunlight causes! 👆👌 Take care of your little one! 👍 Good luck, friend! ✊😇