530 login incorrect

Hello everyone:

When I try to login to Ibackup.com I get the following message:

[17:05:13] SmartFTP v2.5.1006.4
[17:05:13] Resolving host name "ibfolder.com"
[17:05:13] Connecting to 64.14.192.125 Port: 21
[17:05:13] Connected to ibfolder.com.
[17:05:13] 220 ibackup.com NcFTPd Server (unregistered copy) ready.
[17:05:13] USER ***************
[17:05:13] 331 User *** okay, need password.
[17:05:13] PASS (hidden)
[17:05:17] 530 Login incorrect.

Can you let me know what I am doing wrong?

Thanks