This is what I know
About 4 months ago, I was getting that error. Did not know what to do. Shortly, thereafter, there was a flood of questiions, at the forum, about the error.
I took the action that is shown in my post (in the link I sent). The problem was gone. I gave the solution to others, did not help. It does not cause any problems, in lieu of a better answer, just wait it out.
I dont think that the NBR will be the ultimate solution.