Help with configuring this for Unraid

[ScribbleGhost]

Can someone please help me set this up in Unraid?

I get this error when trying to add drive Z in the Backblaze settings:

If I run CMD in the VNC and run dir I can see that the mount is available:

But for some reason .bzvol cannot be written. I assume because the mount is incorrectly mapped.

Here are my settings in Unraid. I am trying to mount the "Public" share (/mnt/user/Public/).

[ScribbleGhost]

Bump?

[Atemu]

I can't help with unraid.