[rt-users] Apache failed

[nast linux]

Dear All,

My OS is ubuntu, I installed RT 3.8.1 by following this guide
http://wiki.bestpractical.com/view/Ubuntu_8.04.1.
I already followed the steps untill "Replace 000_default file" then I
tried to run apache 2, but it was failed, then I checked at error.log
:

[Wed Apr 01 16:03:43 2009] [error] Couldn't load RT config file
RT_SiteConfig.pm:\n\nsyntax error at /opt/rt3/etc/RT_SiteConfig.pm
line 75, near ") with the "\nCompilation failed in require at
/opt/rt3/bin/../lib/RT/Config.pm line 410.\nBEGIN failed--compilation
aborted at /opt/rt3/bin/webmux.pl line 101.\nCompilation failed in
require at (eval 2) line 1.\n
[Wed Apr 01 16:03:43 2009] [error] Can't load Perl file:
/opt/rt3/bin/webmux.pl for server nast-linux:0, exiting...

How to solve this error?

Thanks,
ns