Freezer has stopped freezing items regardless of

can be a thermostat issue, or your condenser in the back of the freezer may be plugged up with ice. Unplug the fridge and take the back freezer wall off, be careful not to pull on the wires connected. It may be full of ice. Don't chip at the ice as you may hit a refrigerant line and cause a leak. You can speed up the process with a hair dryer, being careful not to melt the plastic. If this is frozen, you may need a new defrost heater.