Widget: Squeezebox Radio Stream button

I have problems to get the Habpanel widget “Squeezebox Radio Stream button” of @zacofunny working. It seems that the first two positions of the mac-address (in my case “b8”) is lost giving a “Fatal transport error:” Just wonder if this is a generic problem or just caused by my inexperience with HABpanel.

Background: I realise it is an older widget and maybe not often used anymore but here in the NL our ISP (Ziggo) dropped FM / Analog from the cable and one of my reveivers (Block CVR100) uses “Frontier Nuvola Smart Radio service” who puts in some streams additional advertisements (not funny). And off course it always fun to get things working in OpenHABian.

2022-01-05 15:19:11.667 [ERROR] [org.openhab.core.model.script.actions.HTTP   ] - Fatal transport error: java.util.concurrent.ExecutionException: java.lang.NumberFormatException: 27:eb:a0:XX:XX
2022-01-05 15:19:11.671 [INFO ] [org.openhab.core.model.script.SQUEEZEBOX     ] - Receiving :

Hope someone knows the solution, thanks in advance

My OpenHab details are:

Installed = OpenHABian
Release Build = 3.1.0
Release = Raspbian GNU/Linux 10 (buster)
Kernel = Linux 5.10.63-v7l+
Platform = Raspberry Pi 4 Model B Rev 1.1

LMS running on my NAS (QNAP will likely change this to a PI 3B))
piCorePlayer running on Pi Zero (one with DAC other via HDMI)