It is important to create back up schedules from time to time to ensure that if anything where to happen you always have a copy of your schedule saved in the system.
Inside of your event go to schedule in the grey menu bar. There you will see a status bar showing when your last backup was and how many matches were backed up
In that status bar click manage backups or create back if you haven't create on yet.
Hit the create back up now link
Enter a backup name enter any notes you feel are necessary, then hit create.