Unable to use Trial key.

I have successfully install litespeed trial via whm plugin but my litespeed service is not start and given blow error via ssh and Admin Web Console is not linkable in whm and not open by ipaddress:7060

[OK] Your trial license key will expire in 14 days!
2010-01-17 16:06:57.974 [ERROR] [LICENSE] License key operation failure: ERR LC.8: fail to process

Thanks

Is this the time you used a trial key on the server?

Yes at this time i used trial key on server.

Sorry, I meant first time?

Yes i install litespeed fist time on our server for checking purpose.

It is because that you have tried to use the NULLed LSWS.