I make new key today and copy to lic folder and reboot and no works
pi@raspberrypi:/opt/VServer/vlogs $ sudo cat vserver_20190705_112415.log
2019-07-05 11:24:15.855042 (TID 1996029312): Database engine inited
2019-07-05 11:24:15.859765 (TID 1996029312): REST SSL port ignored - no rest SSL certificate.
2019-07-05 11:24:15.881784 (TID 1996029312): REST server started
ERROR: Licence serials_190705 00108179.csv is invalid.