FTP not working after upgrade [SOLVED]

Hi,
I am running virtualmin 6.04 (webmin 1.900) on Ubuntu 16.04.4.
I ran “apt-get dist-upgrade” and when proFTPD was upgraded I confirmed the default option “Standalone”
Now FTP connections through Filezilla are rejected with the following error:
The data connection could not be established: EHOSTUNREACH - No route to host

I can still open an FTP connection using the ftp console but not with FileZilla or Caja.

Does anybody know how to fix this issue?
Thanks

Solved by copying the contents of /etc/proftpd directory from another working server