My friend had been busy for about a month and didn’t have time to log in. When he did log in, he saw all of his progress wiped. I was wondering if there was a backup that a mod could do if possible. He’s really sad about it.
Most important question is:
What game mode or server are you playing?
Backup is something that can not be done in retrospect. A backup is something you do before losing data.
Restore is what a backup is for. If a backup existed, you can restore from the backup.
But again, the most important question is where is this game hosted? Private server with a host, private dedicated server, public official server, coop/single player?