Software can't communicate with licensing server for license validation. Please make sure you're running module on live server, connected to Internet.
It needs to communicate with following host 'license.magneticone.com'(ip: 95.154.217.130), port 80 (regular HTTP connection). To make sure that you have correct IP address, please do ping for license.magneticone.com

You need to allow connections at firewall to that host OR request your hosting provider to change your server settings.

Also it's important to make sure DNS resolution is properly configured, it is on most hosting providers, however sometime this can be problem at missconfigured hosts.

It's completely safe, no private information is sent, it creates only very minimal traffic (few dozens of bytes), at very large time periods.