Lots of Condensation

I got this for Christmas from my mom after I desperately wanted it. I got home, set up and was loving it until after 2 months I had to unplug it to let it defrost because where the screws are in the fridge at the back was covered by ice. A literal chunk of ice. After a couple hours I plugged it back in and about once a week I have to take everything out of the bottom shelf and dry off. There is constant condensation coming from that area in the back. I will not be purchasing another one of these after this one goes and I have a feeling that it will be sooner than later.