500 OOPS: could not bind listening IPv6 socket

vsftpd.service - vsftpd FTP server
   Loaded: loaded (/lib/systemd/system/vsftpd.service; enabled; vendor preset: e
   Active: active (running) since Sat 2019-04-13 15:39:41 EEST; 8min ago
  Process: 1297 ExecStartPre=/bin/mkdir -p /var/run/vsftpd/empty (code=exited, s
 Main PID: 1310 (vsftpd)
    Tasks: 1 (limit: 4915)
   Memory: 924.0K
   CGroup: /system.slice/vsftpd.service
           └─1310 /usr/sbin/vsftpd /etc/vsftpd.conf

апр 13 15:39:41 Sve systemd[1]: Starting vsftpd FTP server...
апр 13 15:39:41 Sve systemd[1]: Started vsftpd FTP server.