Your user has a Corporate 6 license tied.
A Corporate license (now it's called Advanced) allows to use the library on the purchased domain and its subdomains (*.babware-trading.com), localhost and private networks (classes A, B and C). So it must run fine on your local server.
Please send to contact[at]phpdocx.com the IP of the server that returns the license error, its URL (e.g.: http://domain.internal.dev) and the output of check.php (this script is included in all packages). After checking this information we'll send you a file to solve the issue.