This plugin is a proprietary software.
Proprietary software is software that grants its creator, publisher, or other rightsholder or rightsholder partner a legal monopoly by modern copyright and intellectual property law to exclude the recipient from freely sharing the software or modifying it.
That means that:
1. You can not reproduce or sell this plugin (and it's code) without my permission.
2. You can use it only on your own server.
Code modification (one exception I make for current license):
You can modify the code but only in case if it will be used on your server only and will not be shared to anyone else
