Hi,
I tried to log-in with the details, but it reports an incorrect password to me.
If you delete the plugin manually, the database data is not deleted, even if WordPress tells it will be. You can safely delete and re-install the new version.
I double checked the auto updated on all of our servers, but it works all right. If you are using a firewall by any chance, I suggest checking if there are any recent blocks to the update server (update.wp-dreams.com).