[ERROR] [LICENSE] License key operation failure: DT.7: The maximum number of server(s

[sunucuservis]

hi
https://store.litespeedtech.com/stor...yarticle&id=12

can not do that shut down the old vps

root@linux [/usr/src/lsws/lsws-4.1.12]# sh cPanelInstall.sh
Cannot find RUBY installation, remember to fix up the ruby path configuration
before you can use our easy RubyOnRails setup.

mkdir: cannot create directory `': No such file or directory
Serial number is available.
Contacting licensing server ...

2012-05-20 00:18:07.286 [ERROR] [LICENSE] License key operation failure: DT.7: The maximum number of server(s) can be installed with this serial number has been reached. If you want to migrate a license used on another server, please consult the product manual regarding how to transfer a license. count=1
[ERROR] Sorry, installation will abort without a valid license key.

For evaluation purpose, please obtain a trial license key from our web
site http://www.litespeedtech.com, copy it to this directory
and run Installer again.

If a production license has been purchased, please copy the serial number
from your confirmation email to this directory and run Installer again.

NOTE:
Please remember to set ftp to BINARY mode when you ftp trial.key from
another machine.

root@linux [/usr/src/lsws/lsws-4.1.12]#


license promlem
Please help me How to enable license?