Q.Why Is The Fruit On My Jerusalem Cherry Puckered And Wrinkled?
What will correct this problem?

Certified GKH Gardening Expert
I suspect it needs some fertilizing, or that it's a soil problem. Another possibility is insect damage. Check the underside of the leaves for sucking insects like aphids, mealybugs or scale.
https://www.gardeningknowhow.com/houseplants/jerusalem-cherry/growing-jerusalem-cherry.htm
https://www.gardeningknowhow.com/plant-problems/pests/insects/what-is-armored-scale.htm
https://www.gardeningknowhow.com/plant-problems/pests/insects/homemade-aphid-control.htm
https://www.gardeningknowhow.com/plant-problems/pests/insects/mealybugs-control.htm