Liebherr – Freezer not freezing

Hi All.

I hope this find you safe and well

I wonder if someone might help me, or at least point me in the right direction please.
Here are the details;
Wine cooler and freezer
SWTNes 3010 Index 22D/001
Service no: 9986182-04
Serial: 27.686.711.6

My freezer started alarming on Sunday evening. The temperature was set to -18 and was showing that on the display. I didn’t have much in the freezer, so took out what was in there and put it in my other freezer. I cleared the alarm and all was good. I checked Monday morning and the alarm was going again, but the freezer display showed -5.
I turned off the freezer on the main control panel and left over the course of the day to defrost. I defrosted the freezer compartment fully. The drip tray on top of the compressor was full, so i soaked the excess up.
I turned the appliance on over night, Monday with, Superfrost on, but it has not cooled at all. There are two dashes where the -18 would usually display.
The freezer still feels warm inside.
The compressor seems to be working, as its getting hot and making noise.

I also turned on the wine cooler section, but that has not got cold either. Presume that works off the freezer part?

Any advice would be gladly taken.

Best regards

Dave