What does it mean?

The message involves a large number of sins. Some FTP sites allow people who are not its members, while some do not. The other could allow non-members, but limit the number of visitors. Another possibility is that your browser does not support anonymous FTP access. The way most browsers handle the situation to the "Anonymous" as user name and your e-mail address for your password.

What can you do about it?

Or try again later, the peak time, or enter your user name and password manually (using FTP software such as WS - FTP) of the. Remember: Your ID is anonymous and your password is your email address. Refer also to review, Too many users.