Please click the below link and on the right side there is text box below the heading 'Forgot your password'.
Please enter your registered email address there. You will receive an email with a link to reset your password. If you don't find the email in your inbox, please check your bulk or spam folder.
If you still have problem, please contact MaxSold (firstname.lastname@example.org), and we could look into your username and registration email for you.