I would unzip the backup and check the SQL file inside for DATA4. That's what I did in the other thread when he sent in his backup and I didn't find any references. I restored it and didn't encounter the issue. I would advise that you restore the backup into a clean database to check it out (move Mango/databases when Mango is off so that it will start on a new database) and perhaps keep a JSON configuration export and output of SELECT id, xid FROM dataPoints; on hand, in case you need to restore via JSON rather than the database backup.
B