We have been having problems with the temperature in our 5yo Samsung refrigerator fluctuating and being too high. Based on Internet research, all signs pointed to freezing over or other issue with the evaporator fan, so I took the back lower panel off to see what I could find. There was indeed a large block of ice there.

Unfortunately, the ice had frozen onto the styrofoam frame that sits between the back of the fridge (around the evaporator coil) and the exposed panel. When I removed the panel, I broke off a piece of the stryofoam frame. The pictures show the frame put back together, and the broken chunk.

My question is, do I need to buy a whole new panel assembly ($125)? Or can I get away with a bit of glue to solidify the frame and put everything back together?

Finally, there is was some kind of black goop (3rd picture) mixed in with the ice that was on the back of the fridge above the evaporator coil. It has a rubbery consistency like some kind of putty... not totally rigid, but pretty solid at room temperature. It did not appear in the various videos I watched to figure out what I needed to do, and it looks almost like it dripped down from the tube above it. Should I worry about it?

Thanks for any advice you have!