I can't copy files (ftp server -> home directory with Dolphin/Krusader)

I have local ftp server.
I try to copy one file from this ftp server to my home directory.
But I can’t do it. I try to use Dolphin and Krusader but both can’t do it.
I tried to do it as root even. Still without success.

Only solution that I found it is to use fileZilla (ftp client)

What is wrong?