[ERROR] [config:server:basic] Invalid user name:apache!

[WraiTh]

hello,
i want to start using litespeed on my servers but i installed trial 14 days on first one with cpanel and i get this error when its time to start.

If "Port Offset" has been set to "0", you should do it now.
Press [ENTER] to continue
Would you like to start it right now [Y/n]? Y
[OK] Your trial license key will expire in 14 days!
[ERROR] Failed to start litespeed!
litespeed: no process killed
[OK] Your trial license key will expire in 14 days!
[ERROR] Failed to start litespeed!
[ERROR] Failed to start the web server. For trouble shooting information,
please refer to documents in "/usr/local/lsws/docs/".

in errors.log i get this
2012-04-17 10:05:27.355 [ERROR] [config:server:basic] Invalid user name:apache!
2012-04-17 10:05:42.560 [ERROR] [config:server:basic] Invalid user name:apache!


how can i fix it?
also, how can i boost it for the server to work better?