thats scary since i have a vevor . i think there is a drain hole on the hump . idr off hand. if there is , check the drain hole on the hump . if its frozen or clogged i think it can affect temperature . you can clear it by blowing air through it sometimes. i have done this with a few fridges in the past and it worked.
dr google agrees :
Yes, a clogged drain hole in your refrigerator can definitely prevent it from cooling properly. The drain hole, usually located in the freezer compartment, is crucial for draining water that accumulates during the defrost cycle. If it's blocked, water can build up inside, potentially causing leaks and affecting the cooling process.