Unable to reach ZimaOS on LAN network (ping and nmap unable to find anything)

I’m unable to reach zimaos from local network and now also from remote.
ZimaOS 1.6.2

Since some releases my zimablade has became impossible to find on the LAN network.
It was set in DHCP on port eth0 anche LAN address was 192.168.1.8

Then suddenly it became impossible to reach on lan network (like, i cannot ping it, find it using nmap and else).
Fortunately i had remote connection using ZimaOS VPN connection.
So zimablade was able to connect to internet but unreachable from LAN.
I hoped that the cause was a clash between VPN and LAN, so i disabled VPN and set IP as fixed on 192.168.1.8 like DHCP was doing before.

Now i cannot find the zimablade neither on LAN nor on VPN.
Moreover, now with this “safety shit” i cannot access TTY with internet connection and standard boot but just with rescue system. Which rescue system has disabled eth connection.

And i don’t know well but SSH is also disabled and i may try to enable it from config file but I’ve seen that all config files are commented with # and i should enable it from web interface.

Unfortunatly, LAN connection does not work so i cannot access webUI.

I’ve also see that now OS is OpenBSD, of which documentation is pretty poor in general.

What can i do to fix this?
Is there a firewall enabled without my permission that exclude zimaos to be seen on LAN?

Thanks a lot,