What is this UPnP warning in my logs

Hi folks,

someone can explain this warn?

2015-12-27 01:07:57.577 [WARN ] [StateVariableAllowedValueRange] - UPnP specification violation, allowed value range minimum ‘255’ is greater than maximum ‘0’, switching values.

it seems related to sonos binding, but I didn’t find any specific info how to fix it.

Please let me know