Not cooling properly

Whirlpool fridge beeping and clicking, not cold enough. Side by side model gc5shexns05.I hear a random relay clicks and the evap and condenser fans both shut off for a few seconds then come back on for 20 or 30 seconds on average, but it seems random. The relay that is clicking sounds like it’s in the plastic box to the left of the compressor when looking from the back. I unplugged it for a few minutes and it continues, but now there is also a double then single beep coming from what sounds like the same location. The fridge is warming up. The evap coils look a little icy and some frost on the back panel, but not a ton. I didn’t take the back of the freezer off, I was just looking through some slots and could see the bottom of the evap coils, so I don’t know how badly they are iced up, but they looked a little icy from what I could see.The compressor seemed to continue to run when the fans clicked off. What do you think is the problem?
Tom