Taking license key

I can’t take license key.
I’m trying to get license key first for localhost and cannot create it.
Any help?

What error do you get?

Could not resolve the IP specified (
I saw here on forum I need to put as IP address. won’t work since that is a loopback address, enter your public ip e.g. by googling “what is my ip address”

Good evening I need help, even after several tests I always have the same error message at the start of my server launch this server does not have a specified license key while everything is correct sos

Create your own topic please