User guestbooks are not accessable

Issue Summary

Hey Folks,

I shortly disabled my user guestbooks. Tody, I re-enabled them, but I can't access a single one of them, neither as admin, nor as 'authenticated user'. Accessing /user/%userid/guestbook only displays the users profile.

I've granted access to user guestbooks for all groups and the guestbook is enabled in the users profile settings.

I remember, that there has been a link in my navigation menu to have a look at all the guestbooks. Thes link is not there now.

Can anyone help me please? I'm very confused about that.

Thanks,
forschi