A few other things can cause this, like too much water, too much sunlight, the age of the plant, pests, and lack of nutrients. Don't worry, though! These are all easy to fix. Don't worry, and it's straightforward to treat! All you need to do is monitor the temperature, ensuring it's between 65°F and 80°F. Please place it in a pot with pebbles on the soil's surface to avoid too much water when you water it. And try to increase the humidity to 60% and 80%.