[Zope] Tiny Tables

G'day, I am new to this list, and immediately I have a problem ;) It appears the Tiny Tables have become corrupted within the site, so it keeps falling over. What I am trying to find out is if there is a way to repair these while keeping the site in its current state. Unfortunately, the site is amateur, and back-ups have fallen behind. Though we can recover from a backup, it will be somewhat dated and a large amount of work will needed to be redone by the contributors. Any help greatly appreciated. Thanks in advance. Wade Pearce