Backup stopped working - and not seeing drive contents

I have 564gb free on my 4TB external hard drive and in the last few weeks I’m getting an error message saying scheduled backup failed. Roon sees the drive but won’t see the contents and when I ry to backup manually and select location it says error loading folder unauthorised. External drive sharing permissions haven’t changed.

Running Ventura updated on Mac mini 2018.

Please advise how to fix it.

Thanks

A post was merged into an existing topic: Roon cutting out repeatedly and skipping tracks after a few seconds play