I haven't been on the past couple of days. But it has happened. It's probably a maintenance thing. It's probably over now.
The moderators or other users have probably deleted your comments or posts on the forum. Look at your post count and comment count from your profile and that will probably show you what happened.
If they did do that, they should of warned or notified him.
I'm guessing this issue might have something to do with....well, anyone who's online should go to their page and find something miraculous....something green, perhaps...
Sometimes when you see this message it means there is simply something going on with the website you are trying to visit and giving it time will fix the issue. If you are able to access other sites through IE with no problem, this is usually the case.
However, if you are not able to see any webpages in IE, these tips will help you fix it - http://windows.microsoft.com/en-us/windows7/Tips-for-solving-problems-with-Internet-Explorer