Yeah I have no idea what's going on. I tried going on crazynaitor's, and Bigbowla's page and it work normally. But when I tried going on Sharkbate's, it doesn't let me.
Really strange. Maybe it was stored under another name on the page, and so the page with your real name doesn't exist. It's really wierd, and it's the first time I see this. It seems to happen to other users too. You might consider trying again tomorrow and if it still doesn't work you should contact an admin. It might be a temporary break down of a part of the server, which would mean that some data dissapeares. I don't know...
You should probably try refreshing the page, or restarting your computer, this happens to me often and that's usually what solves it and lets me on my page, that should solve the problem.
if not, sometimes I get a message telling me it cannot access the page, so I have to use an alternative way to get to AG, either using the Search Bar and finding AG itself, going to favorites, ect. Hope this helps =)