Hi,
You may have a partial blockage of the cooling system.
Damage may happen in as little is 15 minutes.
Some folks have had occasional success by using a vibrating type electric sander (with no sand paper) placed on the tubing and running it for a time. This is pretty much a "Hail Mary" but if you have the tools...
Some others have had occasional success by taking the fridge out and "rolling it" over and over to try to dislodge the clog. Again this is a "Hail Mary".
If either of these work for you, I'd immediately invest in the ARP unit to prevent further overheating.