Can not disable MPD in v8.1 Allo GUI

I have installed two USBridge devices and updated to v8.1 with Allo GUI.

All services can be disabled except MPD. The Save Settings function never works after selecting to disable that service.

Also, there is an unusual grep reference in the Allo GUI MPD window:

Status :ACTIVE
Freq :Grep: /Etc/Mpd.conf: Permission Denied
HzBit :Grep: /Etc/Mpd.conf: Permission Denied

topic has been opened on GitHub as well. https://github.com/MichaIng/DietPi/issues/5302

Going to lock this one. pls continue on GitHub.