To reset your password, open the login window from anywhere - for instance, click the "Log in" button on the main page.
Once there, click the "reset password" button and follow the on-screen instructions.
Make sure that your new password meets the password guidelines, here .
If the text field shows the "User not found" error, check your other email addresses and aliases, in case you used a different one. If none of them work, contact our Support team.