[SOLVED] USB SSD not available in folder view with RPi Zero W

[hifinet]

There is this line:

exception: Failed to open /var/lib/mpd/music/USB/04E3-8958: Permission denied

The mpd log ( in /var/log/mpd) file is very large. It took a few minutes to cat the contents. It has the entire contents of the drives when they are added and removed. Is there a safe method of clearing it?

I have another Kingston 240GB SSD that also doesn't show up in Moode folder view, but it seems that the contents were scanned.