Msg#: 3905148 posted 7:41 pm on May 1, 2009 (gmt 0)
favorites.live.com uses an invalid security certificate.
The certificate is only valid for the following names: skydrive.live.com , *.skydrive.live.com , *.events.skydrive.live.com , *.groups.skydrive.live.com , photos.live.com , *.photos.live.com , *.events.photos.live.com , *.groups.photos.live.com
Msg#: 3905148 posted 7:55 pm on May 1, 2009 (gmt 0)
I don't know anything about the specifics, but it looks to me that Microsoft have "moved" favourites.live.com to skydrive.live.com - the site they have the certificate for. Likely, your plugin vendor needs to update their code.