Logos servers sufferEd a crash over the weekend and they are still working on getting in all things back up and running. Under the general forum, there is a post with updates from Logos on the progress.
They're working for me. If you've had Logos running since the weekend, you may need to restart it to force it to re-check whether online PG sections are available. (If it couldn't load them when it started, it may have marked them as being offline/unavailable till you restart the application.)
