Hello MOMMAJEANNIE,
To help resolve this issue, restart your devices and try authenticating again using your fingerprint or passcode in Settings > Passwords: How to find saved passwords and passkeys on your iPhone
View saved passwords and passkeys in Settings
1. Tap Settings, then select Passwords. In iOS 13 or earlier, select Passwords & Accounts, then tap Website & App Passwords.
2. Use Face ID or Touch ID when prompted, or enter your passcode.
3. To see a password or passkey, select a website or app.
• To delete a saved password or passkey, tap Delete Password or Delete Passkey.
• To update a password or passkey, tap Edit.
Also, make sure your iPhone is up-to-date. Apple's updates contain software that is crucial to the operation of your iPhone: Update your iPhone or iPad - Apple Support
If the issue persists, we recommend you Contact Apple for support and service.
Thanks for using the Apple Support Communities, and have a great day!