Facebook is upgrading something more today (yes other than the timeline, as I have been upgraded to timeline already)
Facebook Account Temporarily Unavailable
Anyway, while trying to check the notifications and the posts associated with them on my facebook account a while ago, I received a facebook account temporarily unavailable message. Saying:
Account Temporarily Unavailable
Your account is currently unavailable due to a site issue. We expect this to be resolved shortly. Please try again in a few minutes.
Fair and sweet enough, the facebook account is unavailable due to facebook own issue, so don’t panic that your account is blocked or hacked (as many users say on comments to other similar posts) , have some patience and it will be back soon.
It took almost 5 minutes for my account to get normal.
Please note, this error page is custom page. Don’t keep refreshing it to see if the site is working normal now or not, instead, goto the notification / wall again and try .