Exception thrown

flow\db\SafeMySQL: Unknown column 'cach.boosted' in 'field list'. Full query: [SELECT `cach`.`feed_id` as `id`, `settings`, `errors`, `status`, `enabled`, `last_update`, `cach`.cache_lifetime, `cach`.system_enabled, `cach`.boosted FROM `wp_ff_cache` `cach` ORDER BY `changed_time` DESC]