@Gargron It's a rainforest plant, so non-direct sunlight is preferable.Watering too much is worse than watering too little; the plant can bounce back from a "drought", but if the root system starts to rot due to overwatering, it's good night, Irene. Also, you could mist the leaves from time to time to emulate the rainforest humidity.
@_javajunkie I've moved it away from light, we'll see if it helps. Also I'll try to water it less!