Official Spotify plugin / Spotify Protocol Handler suddenly no longer working

You should try to reduce your LMS environment to the max. I'm pretty
sure your issues have nothing to do with Spotify. The only oddities in
your log date back to before Spotty's installation. Please disable all
3rd party plugins, MusicIP etc. and try again. If that solves the issue,
add them back one-by-one.

BTW: your complete log file brought a totally unrelated (and harmless)
issue to my attention:

https://github.com/Logitech/slimserv...6455ef1394136c

:-)

--

Michael