Q.What Is Wrong With My Sunshine Ligustrum?
Following picture came from the middle of the plant. How can I treat this?
Certified GKH Gardening Expert
It does appear to be what is known as "Witches Broom". This describes the appearance of the issue at hand. Unfortunately, it can be caused by many things, from environmental to disease to mutation. In your case, it looks microbial, whether that be fungal, bacterial, or viral.
It will likely take a visit to your local extension service for some testing.
https://www.gardeningknowhow.com/extension-search
These articles will offer some information on the subjects at hand:
https://www.gardeningknowhow.com/ornamental/shrubs/ligustrum/growing-ligustrum-shrubs.htm
https://www.gardeningknowhow.com/ornamental/trees/tgen/witches-broom-disease.htm