jollies Nancy fuchsia plant is losing its leaves and produces few flowers
What's wrong? I have it in a plastic hanging basket in mostly shade.
This description suggest either soil/root problems or insects. Examine your plant for bugs -- this article will help: https://www.gardeningknowhow.com/houseplants/hpgen/common-bugs-and-pests-on-houseplants.htm
If you don't see any of those, look at light and watering. This article has basics of fuschia care: https://www.gardeningknowhow.com/ornamental/flowers/fuchsia/growing-fuchsia-flower.htm
Light is tricky for these plants. "Mostly shade" might be too much for your plant; try a place with less shade. You may have to move it around a bit to find the happiest place for it.
A potted plant's life always hangs on watering; if there are no bugs, you're probably either watering too much or too little. Think about the history of the plant -- do you water it a lot, like every day? Or do you sometimes forget it, and only water when it starts to wilt? These questions give you a clue as to what may be the problem, and this article has more information: https://www.gardeningknowhow.com/houseplants/hpgen/watering-your-houseplants-properly.htm