[Koha] apache restart error

[etaisil ineseliam]

I just finished installing koha, and when I try restarting apache I get
this error


[sudo] password for kohauser:
apache2: Syntax error on line 268 of /etc/apache2/apache2.conf: Could not
open configuration file /etc/apache2/sites-enabled/library: No such file or
directory
Action 'configtest' failed.
The Apache error log may have more information.
 failed!
kohauser at KohaServer:~$

what am I doing wrong here?

thanks in advance! =)