Error on installation of guestbook

[patlap]

I installed the lattest Guestbook 1.1-beta1 on Hawaii beta 4 and get this error that doesn't allow me to go to my control panel anymore.
Fatal error: Cannot redeclare class guestbook in /var/www/html/site/modules/Guestbook/lib/classes/module/class.Guestbook.php on line 41

[Elijah Lofgren]

I think sometime modules somehow get installed twice into the database which can cause and error like this.
You could try uninstalling and reinstalling the module.
If that does not work you can go to the cms_modules table using phpMyAdmin and delete the duplicate "guestbook" row.

Hope this helps,

Elijah