Some of these need to be reset to clear error codes. Try unplugging the unit for a few minutes and see if it improves.

Just FYI-The button on the icemaker isn't a reset it's a test cycle.Push it and shut the door or trigger the magnetic door switch with a decent magnet up near the hinge. You'll know when you've found the reed switch when the lights go off. The ice bin may need to be in also.

You should hear the IM cycle, ending with a fill. If it has water in it it will overflow, or dump that water as it cycles.

Are you certain the IM overflowed? Did you directly see the issue? These are known for clogged defrost drain tubes, accumulating water/ice under drawers, or on bottom of freezer. This impairs it's cooling and the IM will not cycle if not cold enough.

Or the air duct blowing up from freezer is iced over and the ice room isn't cold enough.

Welcome to the murky world of Samsung... Sometimes I spend an hour just identifying the problem.