Hello Dietrich,
how do I recover all the missing K2 data in Easyblog?
-- If you mean the custom fields and user ratings, I am sorry but it is not possible to import those into Easyblog as our K2 migrator only migrate post and comment.
Also, the K2 migrator does not seem to migrate item hits either.
-- Can you try to replace the attached file with
../administrator/components/com_easyblog/includes/migrator/adapters/k2.php and remove all migrated posts from #__easyblog_post table and content from this table: #__easyblog_migrate_content where component=com_k2. Then try to re-migrate again. It should migrate the hits as well.
If that's not working, you can provide us your backend and FTP access so that we can troubleshoot this.