There is a way to fix problem and keep all data:
1. Export "cybppdonate" table from your database, save to your computer
2. Go to your AdminCP > vBulletin Setings > "Cyb - PayPal Donate" and just leave this page opened
3. Open product manager in different browser tab and uninstall "Cyb - PayPal Donate" (both instances)
4. Import latest version of hack
5. Go to browser tab where page from step 2 is opened, then just click Save at the bottom of the page
6. Import saved "cybppdonate" table to your database
If you haven't upgraded yet to 4.5 then apply this patch before doing so:
http://www.vbulletin.com/forum/proje...?issueid=25373