DCO and ITA backup file(s) can be restored on ITA server.
In general, backup files from the previous versions of DCO or ITA can be installed on the latest version of ITA.
a) Upload the backup file you want to be restored to the /data/backup folder (the default location on the server).
b) In the web client, go to Administration > Backup and Restore.
c) Look for the file you want to restore, and then click on the backup file's Restore option.
Note: It is recommended that you take a fresh backup from the current setup before restoring any backup file.