If I am not wrong this domain site (
http://www.adisound.com) is your live site right?
If yes, I think it would be better you can roll back to your previous backup which Easyblog still running 3.8 version, because since you found out following issue :
1. there is a post that I need to approve, but there are gone now after upgraded
2. the system keep sending new moderation post email notification during upgrading
And i think the better way to investigate on this is provide us with your PHPmyadmin (database) access so I can export all the easyblog table then test upgrade into my localhost site.
If you agree with this, keep us update once you roll back your previous backup which EasyBlog still running 3.8 version on the site and provide us with your database access.