You could also use my script which can automate the backup process:
Invoked with the following command it will create a backup of your Nextcloud directory, data directory and database: .\ncupgrade /path/to/nextcloud -ob
Hi,
Ubuntu 16.14
virtual machine
apache2 & MariaDB php7 www-data:
/var/www/nextcloud
Nextcloud version: 13.01
Do you think maybe can be happen because is an a virtual machine?
Thanks