Hmm... you could try downloading B1.3.2 again or a version close to it, and then download the subsequent versions one by one.
Example: 1.3.2 -> 1.4.2 -> 1.4.4 -> 1.4.7 -> 1.5.1 -> 1.5.4
(I skipped some versions to help you avoid downloading too many files)
This way, your data file will gradually update to the new version. But if you ask me, I'd prefer to keep playing on the older versions, since loypoll removed too much stuff in the newer ones.