Leaking water from freezer. I've noticed now every day around 4:30-5:00PM a puddle of water under

Question

I've noticed now every day around 4:30-5:00PM a puddle of water under the freezer side of our refrigerator. When I checked in the freezer itself, the bottle pull-out tray is frozen in a block of ice. What it causing this? And, is it easily fixed? Thank you.