Fix Fail2ban by reinstall and chainging vsftpd-iptables to - true to false
apt-get remove --purge fail2ban -y
apt-get install fail2ban -y
systemctl restart fail2ban
[vsftpd-iptables]
enabled = false
filter = vsftpd
action = hestia[name=FTP]
logpath = /var/log/vsftpd.log
maxretry = 5