For what reason Can't access Yahoo account if sign-in issue there?

Actually, it is regular that to access any account you have to sign in that with your client credential in the event that you have an account there, and in the event that not, then you have to create another account there. Thus, can't access Yahoo account that happens on the off chance that you have a login issue. You need to likewise guarantee that you enter the correct email id and secret key.

https://www.supporttechhelp.com/blog/cant-access-my-yahoo-account/