Can't restore configuration on new installation

[pike (Michael Kicks)]

So, what are you working on? 6 Mar 2019

Yesterday evening i got stuck into a firewall restore. Bad idea to restore a 7.6 configuration on 7.5 setup. For anyone who’s trying to do the same thing: install Nethserver, update to latest release, and only then restore. Maybe one day there will be a disclaimer during first NethServer setup who will tell you “restore only a configuration from the same version of this installation”.

This happened to me when i tried to restore a 7.6 setup on a 7.5 install.
Basic setup should have at least one green interface.