error linux firewall

good morning

I have a problem

if I go into menu linux firewall I get this error

Error reading file : unexpected line ’ post-up iptables-restore < /etc/iptables.up.rules’

the same if I go into the network configuration -> Network interfaces -> Active startup interfaces

if you launch the command ssh iptables I see everything correctly no problem.

Ubuntu Linux 14.04.3
Version Webmin 1.831
Version Virtualmin 5.06
Kernel Linux 3.13.0-86-generic su x86_64

how to solve?