Cannot add spotify tracks using mpc


Hi. I tried almost everything the last two days and could not come to a solution so it is time to ask some more experienced mopidy people. I had a perfectly working setup on my first raspberry pi 3b and now started to make a second mopidy install on my raspberry pi zero w with a justboom dac phat. Everything works like charm accept from the fact that it does nog accept spotify tracks. When I do:

mpc add spotify:user:spotify:playlist:3ZgmfR6lsnCwdffZUan8EA

I get:

error adding spotify:user:spotify:playlist:3ZgmfR6lsnCwdffZUan8EA: directory or file not found

Here are all the debug outputs and configs I checked, but could not find the issue. Anyone who can?