Error message when resetting Apple ID password from settings

Hi there Pencha1,

For the error you're seeing, you'll want to be sure you have the correct country code entered for your trusted phone number. To edit your trusted phone numbers, you can follow these steps:

Add or remove a trusted phone number

When you enrolled in two-factor authentication, you had to verify one trusted phone number. You should also consider adding other phone numbers you can access, such as a home phone, or a number used by a family member or close friend.

1. Go to Settings  > [your name] > Password & Security.

2. Tap Edit (above the list of trusted phone numbers), then do one of the following:

- Add a number: Tap Add a Trusted Phone Number.

- Remove a number: Tap  next to the phone number.

Trusted phone numbers don’t automatically receive verification codes. If you can’t access any trusted devices when setting up a new device for two-factor authentication, tap “Didn’t get a verification code?” on the new device, then choose one of your trusted phone numbers to receive the verification code.

You'll find these steps and more information here: Manage two-factor authentication for your Apple ID from iPhone - Apple Support

Take care.