mpd error upon restart. "unexpected end of json input""

[guermantes]

Hi,

I inadvertently filled my SDcard to 100% and of course ran into problems (I would get stuck in a config overlay, not being able to get back to the player). I deleted lots of FLAC files and moodeaudio started working well again. 

But a remanant error seems to linger. Everytime I reboot or cold start I get several MPD errors: "Unexpected end of JSON input".

I have tried emptying the caches I have found and regenerating library. 

Is there some reset command I can launch, or do I have to reinstall?

[guermantes]

moode log upon boot says:
openmpdsocket error connection failed (1) 111 connection refused

But I can still play music and radio...