Problem with SFTP permission [SOLVED]

I am not able to use Duplicati via SFTP to backup my PC.

I have followed all the necessary steps in the OMV workbench:

• installed Sftp plugin
  • enabled it with port 222
• created shared folder duplicati
  • added as share in Sftp plugin
• created user duplicati
  • assigned to groups sftp-access, _ssh
  • granted read/write access to duplicati shared folder

I keep on getting Permission Denied errors. When I use my root account to connect Duplicati, it works. So the problem has to do with the permissions of the duplicati user.

How can I solve this?

I did, but no effect.

Maybe the BTRFS filesystem is the problem? Should I use EXT4 instead?

Yes, that did it. Duplicati is working now.

Merci beaucoup.