Thanks for contacting manage my life about your freezer model 253.28712809; sorry you are having a problem, I will be glad to assist you.
Based on your description of the issue, I suspect that either a sealed system issue (compressor failure, refrigerant flow or restriction). Your system will alarm anytime the freezer temperature is above 23 degrees F.
There could also be a communication issue in the control and in either condition you need to schedule the service.
If the door was accidently left ajar the issue symptoms you had could arise. You should be able to determine this if it starts cooling again within 24 hrs.
If you get to the point where you need to have a service technician diagnose and repair this failure, you can schedule service through this link:
Sears Home Services