Oh yes, backup regularly! As I said to one young student last night, "You back up your homework?" [Nodding head over Zoom!] "Then back up your registrations, plus any user styles, sounds, multipads and songs." Copy to a named and dated folder USB stick [like Backup 270121] and, if you like, copy the contents of the stick to your computer as an extra level of backup.
Reminder to self, backups due later today, keyboard, organ and computer (all backed up to external drive, disconnected when not in use!)