I'm trying to do OLCI for a flight I'm on tomorrow at 19:00. Printed out my wife's boarding pass no problem, but for myself I get:

Unable to Complete Check-in
We are unable to complete the check-in process at this time. Please proceed to the airport for assistance.


There are two possibilities. I think.

1. I'm using an upgrade certificate for seat 1E. Perhaps I need to present it to the agent in person before I can print my pass?
2. The other possibility is that I was on the stupid (useless) no fly list about 2 years ago and could never check in online back then. But for the last two flight I've had no trouble.

Any ideas?
I'm really hoping the issue is #1.

BTW my wife and I are on different PNRs.