I concur, probably an error, and the flight departures board from the Lyon St Exupéry Airport website shows interesting stuff:
As you can see, that flight:
- only shows the destination airport code, when others show the destination name
- does not have a status
Interestingly, there's another flight to LYN at 18:00, with yet another airline and flight number. That one shows "Canceled", though. CCI may be the "Chambre de Commerce et d'Industrie", which is a local authority dedicated to business support, which is usually the (part) owner of airports in the area. In the case of LYS, the CCI of Lyon used to be the operator, and they now indirectly own 25% of the airport, so they are probably still involved in its operations.
Trying to click on any of those results in a blank page rather than the usual flight status details, which again seems to be an indication of incorrect data.
So either an error (manual input error, or a problem in some automated process), some kind of test, or maybe due to systems integration they had to do something funny to be able to display something specific on the screens of some check-in desk for whatever fun activity they may have been doing :-)