I keep on getting an Authentication failed, sorry message

Everytime I try to use smartftp, I keep getting this

[11:39:49] SmartFTP v2.0.995.3

[11:39:49] Resolving host name "ftp.kylosa.com"

[11:39:49] Connecting to Port: 21

[11:39:49] Connected to ftp.kylosa.com.

[11:39:49] 220-FTP server ready.

[11:39:49] 220 This is a private system - No anonymous login

[11:39:49] USER tsaiyeth

[11:39:49] 331 User tsaiyeth OK. Password required

[11:39:49] PASS (hidden)

[11:39:49] 530 Authentication failed, sorry

[11:39:49] Active Help: https://www.smartftp.com/support/kb/51

[11:39:49] Cannot login waiting to retry (30s)...

Please, if you can, help.

Either your username or password are wrong, or your account does not exist anymore on that server ...

Thank you.