關於bugzilla的問題 - Linux

我在kubuntu 8.04上安裝bugzilla並設定好apache2的相關設定
用瀏覽器連結時卻出現下面這段error message
The server encountered an internal error or misconfiguration and was unable to
complete your request.
Please contact the server administrator, webmaster@localhost and inform them of
the time the error occurred, and anything you might have done that may have
caused the error.
More information about this error may be available in the server error log.



以下是我從/var/log/apache2/error.log擷取出來的error message
[Sun Oct 19 18:17:59 2008] [error] [client 139.175.55.212] No value for param
user_verify_class (try running checksetup.pl again) at
/usr/share/perl5/Bugzilla/Config.pm line 225.
[Sun Oct 19 18:17:59 2008] [error] [client 139.175.55.212] BEGIN
failed--compilation aborted at /usr/share/perl5/Bugzilla/Auth.pm line 43.
[Sun Oct 19 18:17:59 2008] [error] [client 139.175.55.212] Compilation failed
in require at /usr/share/bugzilla/Bugzilla.pm line 28.
[Sun Oct 19 18:17:59 2008] [error] [client 139.175.55.212] BEGIN
failed--compilation aborted at /usr/share/bugzilla/Bugzilla.pm line 28.
[Sun Oct 19 18:17:59 2008] [error] [client 139.175.55.212] Compilation failed
in require at /usr/share/bugzilla/globals.pl line 803.
[Sun Oct 19 18:17:59 2008] [error] [client 139.175.55.212] BEGIN
failed--compilation aborted at /usr/share/bugzilla/globals.pl line 803.
[Sun Oct 19 18:17:59 2008] [error] [client 139.175.55.212] Compilation failed
in require at /usr/lib/cgi-bin/bugzilla/index.cgi line 33.
[Sun Oct 19 18:17:59 2008] [error] [client 139.175.55.212] Premature end of
script headers: index.cgi



我有自己寫一個簡單的cgi檔測試過
apache2和perl的相關設定應該是沒問題的
上面的error message看起來也像是bugzilla的問題
請問這是什麼原因造成的? 要如何解決?

thx!!

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