I've gotten it to reduce in frequency .. this is what I did.
If you use a bright light and shine into the connector at the correct angle you can see the contacts very clearly.
It turns out that there was some soot on the middle 2 pin (they were not shinny like the outside connectors).
I took some 1500 wet/dry paper . .folded over maybe 4 times so it would fit the opening. I started with curving the paper so that it would only touch in the middle so that I didn't wear out the already clean connectors. I pushed the paper in and out of the port a few times until I got copper colored lines on all connection positions.
Then I took a paper clip and bent one end at a very sharp 90 deg angle. I clipped it very short .. only a nub remained, just short enough so that it would fit inside the opening with the bend end/nub facing down. Then I used sandpaper to hone the end sharp enough to fit between the contacts inside the connector (I tried bending a needle, but the metal is too brittle to bend).
I used that to clear any debree between the contacts.
I finished with a couple quick in/outs with the paper again and blew it out with compressed air.
I still get the error .. but it's down to only several a day .... not every 10 sec's like it was before.