I've had a bedrock realm(10 people) since April now. Before my issue occurred, everything was fine just a couple hours earlier. But when I went back on at 11:00 am CDT it wouldn't let me, and whenever any of the members of the realm tried to join it would say disconnected due to world corruption. So I downloaded a copy of a backup to see what was going on. When I looked at the copy of the world there were just random chunks that went all the way down to the void. I then tried replacing the realm with a backup from 9 hours earlier but it just reset the whole world, and now I can't upload a copy of the world to the realm or use any backups(it just says backup failed).  The only reason I can think of to why this happened is because I removed one of the realm members because they were griefing(I used a backup and it worked fine). This doesn't make much sense though because it was working completely fine at like 10:00 am CDT, just an hour before the corruption. Is there any way to fix the realm and upload a world or use a backup back into the realm?