So, does it crash
every time or at least repeatedly?
I did have a crash once or twice and as
@simbun suggested it obviously seems.ro be related to me (unintentionally) searching for songs (when I really wanted to search for artists).
From your screenshot it looks that at least some of your tracks don't have proper ID3 tags. Don't get me wrong, the app simply
should not crash, not matter what you through at it. But it might be helpful to isolate possibly different issues, and look into each one separately.
I noticed I had PNG files embedded in some of my FLAC files. This should generally be allowed (as far as I understand the specs) but the DLNA implementation used by WiiM doesn't seem to like that. No crashes, luckily, just covers not being shown.