EasyDiscuss - SQL Error

Hi - we updated easydiscuss.

Getting this error:
Unknown Column 'Cc.Anonymous' In 'Field List' SQL=Select SQL_CALC_FOUND_ROWS B.*, A.`Has_polls` As `Polls_cnt`, A.`Num_fav` As `TotalFavourites`, A.`Num_replies`, A.`Num_attachments` As Attachments_cnt, A.`Num_likes` As `LikeCnt`, A.`Sum_totalvote` As `VotedCnt`, A.`Replied` As `Lastupdate`, A.Vote As `Total_vote_cnt`, A.`Last_user_id`, A.`Last_poster_name`, A.`Last_poster_email`, (Select Cc.Anonymous From `#__discuss_posts` As Cc Where Cc.`Thread_id` = A.`Id` And Cc.Created = A.Replied Limit 1) As `Last_user_anonymous`, DATEDIFF('2016-05-12 09:41:25', A.`Created`) As `Noofdays`, DATEDIFF('2016-05-12 09:41:25', A.`Created`) As `Daydiff`, TIMEDIFF('2016-05-12 09:41:25', A.`Created`) As `Timediff`, 0 As `IsVoted`, A.`Post_status`, A.`Post_type`, Pt.`Suffix` AS Post_type_suffix, Pt.`Title` AS `Post_type_title`, E.`Title` AS `Category` From `#__discuss_thread` As A Inner Join `#__discuss_posts` As B On A.Post_id = B.Id LEFT JOIN `#__discuss_post_types` AS Pt ON A.`Post_type`= Pt.`Alias` LEFT JOIN `#__discuss_category` AS E ON A.`Category_id` = E.`Id` WHERE A.`Published` = '1' AND A.`Private` = '0' AND A.`Cluster_id` = '0' AND A.Category_id IN (1,2,3,4,5,6,7,8,9) AND A.`Featured` = '1' ORDER BY A.`Replied` DESC LIMIT 5

Any ideas?

Also, when trying to re-install it hangs.