Sometimes there is accumulation of water in the back of the fridge.
It has a non removable drip tray. I guess the heat from the compressor is suppose
To evaporate the water. Is something clogged up?

You need to clean it inside and out. There is a drain under the freezer coils in freezer. Remove cover to coils and pour hot water through drain. Then remove back and wash out coils and pan with spray soap and a spray of water from water hose nozzle. That should clean it all out so it works again. Make sure to replace rear cover as it may not work without it as it will not channel air around coils.

Thank you