Uh-oh. Your keyboard is definitely not getting enough light. It has a very small reserve of energy and may stop working in a few days. It's time for a light intervention. You need to expose your keyboard to more light. When you're not using it, try placing it next to a window or in a brighter room to help build up the energy reserve. Note: it will take several days for the status to be updated.
Need help figuring out how much light is enough? Press the Check Light hot key on your keyboard and check the lux gauge. It should be 200 lux or more to get your energy reserve back up.