The PINs do not match.
Enter the same new PIN in both boxes to finish resetting your app lock.
Why does this happen?
New PIN and Confirm new PIN contain different values. Re-enter both carefully to correct a missed or repeated digit.
How do I check it?
In Forgot PIN, clear New PIN and Confirm new PIN. Enter the same new PIN in both boxes.
Tap Save and stay in the app until it finishes. If you leave and return, complete Verify with biometrics or device lock again when asked, then enter the new PIN in both boxes.
Check that your profile and recent records open, then make a fresh backup. If the message returns after careful re-entry, close the panel and restart Forgot PIN; tell Product support the exact message if it continues.
How do I verify the result?
The new PIN opens your records on this phone. Keep each older encrypted ZIP with its original PIN.
How do I keep my records safe?
Keep the app installed, its records and earlier backups intact. Use the original PIN for an older ZIP, and keep PINs private when contacting support.