I have solution to this
In order to fix the issue, I did the below steps a shown below:
+++++++++++
C:\Program Files (x86)\Parallels\Plesk\admin\bin>ftpmng.exe --remove-all
C:\Program Files (x86)\Parallels\Plesk\admin\bin>cd %plesk_cli%
C:\Program Files (x86)\Parallels\Plesk\bin>repair.exe...
i have create new domain
folder in E:\Inetpub\vhosts was created
but folder in E:\Inetpub\vhosts\default\6\localuser was not created
and it stuck to error 530
same problem as you.
Maybe I have same problem with this FTP Service
it effect to all domain when i create new FTP user in all domain
here some log
Status: Connecting to x.x.x.x:21...
Status: Connection established, waiting for welcome message...
Response: 220 Microsoft FTP Service
Command: USER...