So in the previous hotfix I was grabbing the version of WG using their API getVersion() method, well it turns out this method was added recently! Even some versions of WG7 don't have it
So I switched to grabbing WG's current version from the Bukkit description file, which doesn't go through WG's API at all.
This will fix WG throwing errors, sorry for the inconvenience!
If you have any further issues and you are running WG 7, make sure its the latest version!