Keep an eye on the GT1 World Series forum section (the first race of the season is on saturday), they usually announce it there a couple of days before.
I'm assuming you're referring to the GT1 World Series.
If so, the races will most likely be streamed live, so you should be able to follow the action there. There's no way for you to spectate ingame, though.
First of all we're sorry about the issues caused by the server problems. We haven't been able figure out what might have caused it. We will add the sufficients laps to the two cars who got disconnected (#23 Concept Racing and #06 Team Vires). We are currently waiting for the guy who's in charge of the tracker to add them. We do realise that this will cause some difficulties regarding blue flags, but there's really not much else we can do as of right now.
I hope you understand and once again sorry for the inconvience.