@Medo Not sure if you still have this issue, but I had this issue as well and managed to get the module to finally work, albeit in a way I am not sure I am completely happy with. But, based on reading a similar experience at https://www.raspberrypi.org/forums/viewtopic.php?t=136974 and doing some of the alsa.conf changes, I figured I didn’t have much to lose, and now my module works!

I edited alsa.conf by sudo nano /usr/share/alsa/alsa.conf

Then changed:

pcm.front cards.pcm.front to pcm.front cards.pcm.default (and followed suit for rear, etc.)

Now I don’t know what else this could have messed up, but it made this module work with the errors you show!