Hello, I'm Thileep, I'm happy to help you!
Have you tried logging in using the password option? On the login screen, click "Sign-in options" and try signing in with your password or Microsoft account if available.
If you're able to log in using your password, try resetting your PIN
Open Settings (Win + I) > Accounts > Sign-in options.
Click Windows Hello PIN > Remove > Change your PIN.
If that doesn’t resolve the issue, try performing a Startup Repair
> Turn off your laptop completely.
> Turn it back on and force shutdown as soon as you see the Windows logo.
> Repeat this 2-3 times until you enter the Windows Recovery Environment (WinRE).
> Select Advanced Options > Troubleshoot > Startup Repair and follow the instructions.
Regards
Thileep