Hi and thank you for using Just answer. I'm going to switch this to Q&A so we could have more time to work with your problem. First of all, please don't open your fridge/freezer no more than necessary. Whatever the problem is, I believe you caught the early stages of it and we need to keep things cool at this point.
Now, can you tell me if you can hear your fridge/freezer running? If so, is it cycling? Does it run at all? If it does, any new noises?