Hi Anna, thnx for replying.
it is a new ID (I didn't use it on any other devices), however, I checked the account settings it says only one device is authorized ( my computer).
When i tried to sign in on my iPhone at first I received an error message that the ID or the Password is incorrect but on my computer i signed in without any problem.
So, I tried to change the password but nothing changed. few hours later I tried to sign in again (on my iPhone), I received an error message that the ID is locked and i have to change the password in order to unlock it. ( I did that several times 😟 and I keep receiving the same error message 😟 😟 )