No available sessions on this server
You should take a look at the forum topic here: https://www.nomachine.com/forums/forums/topic/how-to-enable-local-display#post-251
It deals with the same message that Simeonof is getting.
Paai, you should try the latest version (366) making sure you’ve followed the advice in the other topic I just linked. If you are having problems with the installation still, feel free to open a new topic.