If you both are having the same problem, it sounds like a data loss issue. Try seeing if you can rollback your server using backups, if not, make a support ticket about this.
Restoring a Server
Your server automatically makes a backup every hour, you are able to restore your server with this backup, or any backups you made manually.
1. Go to the Backups section.
2. Find the backup you want to restore the server to.
3. Click the Restore Server button.
4. Restart your server, and the backup will be applied!