Software update

Did you install the latest iOS 17.0.2 ? This update deals with the problem, not being able to transfer setup information from one iPhone to a new device.

If you are not running iOS 17, try to use your computer instead:

Use the Finder or iTunes to transfer data from your previous iOS device to your new iPhone, iPad, or iPod touch - Apple Support

You may get better and prompt responses if you may kindly provide the iPhone Model that you have and the iOS version if it is known to you and re-post.

With the limited information that you have provided, It is hard to even guess the problems faced by you. 

You may get faster and better responses to your query by --> Writing an effective Apple Support Commun… - Apple ...

Please re-post with detail so that someone else can help.