Have an issue with Face ID not more functioning

Work-thru the 9-step process outlined here:

If Face ID isn't working on your iPhone or iPad Pro - Apple Support

Hello ~ If working back through the steps in the article you came from doesn’t help you may need to have your iPhone checked…

Genius Bar Reservation and Apple Support Options

Also you may go to upper right hand corner and click on Get Support.

~Katana-San~