audio output error

I have a Raspberry Pi 3 with a Hifiberry DAC + Pro, Mixertype is “software”
Mixer conrol name “Software Volume control”

Output device Hifiberry DAC +, DAC model "Hifiberry DAC +

When trying to change the volume, the sound was very quiet the BS reported an error.

How do I solve the problem?

About Putty I have no root access, so can configure no logs or other configure.

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What settings in Volumio are necessary to operate the COLLYBIA - Mamboberry LS DAC +. Output device? DAC model? I do not find the corresponding DAC in volumio.

Hi !
i am now asking for the ‘mamboberry entry’ feature here: