(bad) firewall status

[Charles Zeitler <cfzeitler@gmail.com>]

i have:
debian@debian:~$ sudo systemctl status firewalld.service
● firewalld.service
   Loaded: masked (/dev/null; bad)
   Active: inactive (dead)
how do i restore it?

thanks

charles zeitler
-- 
 The Perfect Is The Enemy Of
 The Good Enough