Can't login to FTP; 500 Invalid command: try being more creative;

[Aśka Samodurow]

Hello there,
I'm trying to login to FTP. But for some reason I can't anymore, it used to work before I reformatted my Mac. I'm on Cyberduck 4.4.3 (14140) with OSX 10.9.2. This is the only server I cannot login anymore, other work just fine.
Any ideas? Thanks.
A

220 ProFTPD 1.3.4c Server ready.
USER ubraci
331 Password required for ubraci
PASS ********
230 User ubraci logged in
FEAT
500 Invalid command: try being more creative
SYST
211-Features:
 MDTM
 MFMT
 TVFS
 AUTH TLS
 MFF modify;UNIX.group;UNIX.mode;
 MLST modify*;perm*;size*;type*;unique*;UNIX.group*;UNIX.mode*;UNIX.owner*;
 PBSZ
 PROT
 REST STREAM
 SIZE
211 End
PWD
215 UNIX Type: L8
NOOP
257 "/" is the current directory
PWD
200 NOOP command successful
NOOP
257 "/" is the current directory
PWD
200 NOOP command successful
NOOP
257 "/" is the current directory
QUIT
200 NOOP command successful