Thread:Project:Support desk/Mediawiki 1.21 Database errpr

Hi, I have updated to mediwiki 1.21 but then my wiki getted infected by some virus, so I downgraded back from backup to 1.19 but when I try to edit any page is gives me this error: „1054: Unknown column 'rc_moved_to_ns' in 'field list. Can someone help me please ? I had lost many hours with removing virus and now after all I have again some issue with this, I really dont know what to do, I have all Databases backups and folder backups from versions 1.19 and 1.21, but I dont know if I should upload backup of DB or...