The pitchers on my pitcher plant are all dying
It had a lot of baby pitchers but they all died also. The actual plant is thriving and has gotten big.
I don't know if your plant is in the ground or in a pot, or if you just got it or have had it for years, or what variety of pitcher plant it is. All these factors affect it's behavior. However, in general, plants that have plenty of foliage but not enough flowers are usually suffering from either not enough sunlight, or too much nitrogen in the soil. Therefore, you can try increasing the light, and not fertilizing (if you are fertilizing.) Also, you can try increasing the drainage of the soil; although they like damp boggy places, especially if the plant is in a pot, the roots may be too wet. Here's some information on pitcher plants that may provide some clues: https://www.gardeningknowhow.com/houseplants/pitcher-plants/pitcher-plant-fertilizer.htm