Don't owerwater it, otherwise it will get moldy. If you give it sun light, look for a place where it stands in a semi-shade, to prevent this little plant from hot temperatures.
Hey m8!
Looking like overwatered, dig the soil close to seedling and see if there's rot on stem.
This happens when y watering directly on seedlings stem and if the water or the soil around is cold it'll starts to rot.