The following are possible reasons.
Incorrect email address
Email address you have entered may be incorrect.
Please make sure that you have entered your email address correctly.
※Please enter your email address in half-width characters.
Your registered e-mail address itself may be different.
Please check to see if there is another email address you are using.
Incorrect password
Please try to reset your password.
※The email will not be resent during the validity period of the authentication link. (approximately 24 hours)