IF you read the the other posts,
Found outdated scripts under /usr/local/directadmin/scripts/custom/.Yep checked it just now:
+SSH_PORTS="22 2200 22022 53400";
/usr/local/directadmin/scripts/custom/ftp_download.php /usr/local/directadmin/scripts/custom/ftp_list.php /usr/local/directadmin/scripts/custom/ftp_upload.php
[list] sftp return code: 255 Could not create directory '/.ssh'. Warning: Permanently added '[XX.XX.XX.XXX]:53400' (ECDSA) to the list of known hosts. Connection closed FTP information invalid.
Feb 14 21:25:06 host1 lfd: *SSH login* from XX.XXX.XX.XXX into the root account using password authentication - ignored
Confirmed. I am Idiot. Thanks for fixing !Found outdated scripts under /usr/local/directadmin/scripts/custom/.
Yes, you've updated scripts under /usr/local/directadmin/scripts/custom/directadmin-sftp-backups/ but they also need to be copied to /usr/local/directadmin/scripts/custom/
I've upgraded the scripts on your server, and it seems to have solved the issue.