I just get this message after after i sing in every time i try to get into my mail yahoo There have been issues with your authentication on the phone app and when i try to enter my mail through browser it say's There have been issues with your authentication If you continue to have problems, please contact customer service
Has the account been removed from the iOS app and re-added? This should allow for the account to reauthenticate.
The acccount was never aded to the ios app the first trime i tried to add it i recived that eror (or whatever it is) and i tried to re-add it but it didn't do anything
Do you currently have 2-factor verification enabled on your account?