My usb dac does not work on picoreplayer (the usb dac is recognized)

I use a nas to install the LMS server and a Raspberry Pi 4 to install
picoreplayer, the installation process goes smoothly, I use mojo as a
usb dac, everything works fine with the Raspberry Pi 4, I can play the
application correctly with other systems, but after I use picoreplayer,
there is no response after clicking the play button, and there is no
sound.
Here are the exact settings of my system, can someone tell me what the
problem is?
Audio output device settings------usb audio

Output setting------hw:CARD=Mojo,DEV=0

All other settings are default, and I have tried all the options in the
Output setting regarding mojo usb dac, but nothing happens.


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