Audio: Program Mix (muted)

I’ve lost audio output from mimoLive. The Audio Monitor indicates Program Mix (muted), but I cannot discover how to unmute.

UPDATE: unmute located in Audio Control Panel. However, only Ch. 2 was unmuted – the left channel Ch. 1 remains silent, even though a strong signal is present on the mimoLive VU meter.

mimoLIVE Muted Audio

Found solution to unmute in the audio control panel. However, only the right channel unmuted – the left (Ch. 1) is still silent.