[PROBLEM] Failed to open "ALSA default" (alsa); Failed to open ALSA device "hw:0,0"

[Tim Curtis]

Burn a fresh, stock moOde image onto a known good SDcard and then boot up your Pi without any HAT or other device connected. Verify that moOde works in this default configuration by examining the Moode log and confirming that there are no errors.

moodeutl -l

After connecting your HAT board and configuring it correctly in Audio config then rebooting, if you get errors like "Failed to open ALSA device "hw:0,0": No such file or directory" then it would suggest a bad HAT board.