I posted a similar message about this in another section a few days ago. My receipt notice for my I-140 EB1-OR is dated Mar. 14. Up until about Aug. 1 the message line told me the case was still pending. Then it started saying it couldn't find my case no. It seems to me (or at least I hope) that this is just a computer problem on their end. I checked the status of my concurrent H-1 renewal which was approved on July 18, and for a few days in August their system couldn't find it either, but it tells me the H-1 was approved, but still can't find the I-140