[dartho]

Given that those 2 OPEN events are the same 'book' but have different thread ID's, and those thread ID's are quite a spread (33249 & 5996), and that the vBookie item id is only 15 - I would guess that vBookie has only recently been installed - but was also installed sometime ago but not fully uninstalled or something and now you have multiple threads (real old ones and new ones) link to the same books.

You'll need to tidy up the database - uninstall and reinstall should work, but it might leave threads looking odd as they no longer have a bookie event link to them and of course all old bookie events will be gone - as would vcash balances.

Otherwise, you might be able to set the vbookie_item_id (in the thread table) to zero on all threads older than your first recent vbookie thread? This should remove the duplicate links.