Good morning everyone,
I am installing the new on-premise server with maker license and i have some questions / issues which i would like to share with you.
Extra info: I finally installed the on-premise server so I can answer some of the questions / issues 
.
Questions concerning the Maker License:
Its written that the amount of devices is limited and appears an *. What * means? how many devices can i use? 10 devices
On the other hand, what is the meaning of limited performance? [no idea yet]
Installation of the server:
I am not an docker expert at all so i am a bit lost. After the execution of “docker-compose up -d” command I have got the following error message:
ERROR: Version in “./docker-compose.yml” is unsupported. You might be seeing this error because you’re using the wrong Compose file version. Either specify a supported version (e.g “2.2” or “3.3”) and place your service definitions under the services key, or omit the version key and place your service definitions at the root of the file to use version 1.
For more on the Compose file format versions, see https://docs.docker.com/compose/compose-file/
Solution: Upgrade docker-compose
sudo curl -L “https://github.com/docker/compose/releases/download/1.25.5/docker-compose-$(uname -s)-$(uname -m)” -o /usr/local/bin/docker-compose
sudo chmod +x /usr/local/bin/docker-compose
sudo ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose
Thanks for your support
Best regards