I am trying to add local storage. I mounted a partition when I type the path /mnt is ok but when I type a mounted partition /mnt/storage shows a bug. It is not a matter of permissions, because when I type e.g. /home is fine but as soon as I type in /home/admin shows an error, I checked on other directories is the same works only /xxxxxx after entering the next path /xxxxx/yyyy shows an error. For the duration of the 777 privilege tests, the www-data owner
Please provide more information like hardware you are using, operating system.
This is a virtual machine imported from the ova (Univention-App-nextcloud-ESX.ova) SME/Enterprise appliance