One of the reasons could be delays in emails or wrong password recovery settings. First, check whether you have set a recovery email. When you go to reset your password, be sure to check your inbox for the recovery email. Don’t forget to check the spam folder in case the email was lost there. If the above method fails, then the reason could be related to server issues. You may check their page for ongoing technical issues, or you may try resetting the password in a different browser or device. Because ProtonMail always adopts e2ee (end-to-end encryption) security measures, if you do not have the recovery methods, it may be impossible to recover the account. That’s the harsh truth. Visit the help center for more information about account recovery and get in touch with their support team. There may be other methods that they can provide you with. You may also enable two-factor authentication after the maintenance process to strengthen your account security. More Info: https://www.resetprotonpassword.com/ More Info: https://www.resetprotonpassword.com/how-to-reset-my-password-for-protonmail/