Samsung French Door - everything is frozen

I have a Samsung RF265AABP French Door-style refrigerator. The freezer works fine, but the ice maker doesn’t function, and the refrigerator portion of the unit is actually freezing contents. The display panel on the front is inoperable - All displays read "88", with the exception of one blinking line in one of the "8"s. I’ve replaced the control board on the back of the fridge, as well as the control board located under the LED display on the front - no change.

Thanks for your input!

Did you ever figure this out? I have the same problem. I was told it may be an ice maker error code?? Should i switch out the ice maker? Fridge and freezer are still cooling but you just can’t control the temp.