Dear Ninjas,
We have identified an issue with Facebook login via our Mini Client and would like to assure you that our development team is diligently working towards a resolution. For the time being, we kindly suggest using the official website to bind the account with your email address and log in with it. If you need any help, please contact our CS team.
We apologize for any inconvenience this may cause and appreciate your patience and understanding as we work to bring back a seamless login experience.
Best regards,
Naruto Online Team