Has the freezer fully defrosted?
Also is the compressor at the back hot to touch?
Yes the freezer is fully defrosted. The compressor is very very hot
Sorry this isn't good news. If the compressor is very hot but theres no cooling at all then it has a system fault.
Either theres no gas in there or its a poor pumping compressor. This is why its hot as the compressor will run until its cold enough. If theres no gas or its a weak compressor then it will never get cold so the compressor gets very hot.
To check this out fully you need to get a fridge engineer in as they will need to put there gauges on the back to see if theres gas in there or to see what pressure the compressor is pumping at.
Sorry this isn't good news but if you need anymore info just get back to me.