I have got a broken installation of nextcloud in opensuse 15.1. It was working great but I show, as admin a message “click here to upgrade version” and I did it and it fails, after that I realized that I have installed nextcloud through the Opensuse packet manager and upgrades should go this way.
Te point is that I think it may be easier to backup user data, delete nexcloud install it from scratch and recover the backed up data. I have seen some documents explaining the backup process but if i only want to backup alll user data (files, calendar, etc.) but no the system files what should I back up?