How to unlock iPhone 14 with Stolen Device Protection and restore Face ID functionality?

Stolen Device Protection?

I have an iPhone 14 that suddenly activated “Stolen Device Protection.” My Apple ID is mine, and I am the legitimate owner. Since this happened, Face ID is not working and I cannot access apps that are locked with Face ID.

I have tried restarting the phone and updating iOS, but the issue persists.

Could you please help me unlock the device and restore Face ID functionality?

Thank you for your assistance.

[Re-Titled by Moderator]

Original Title: Stolen Device Protection/Activation