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Many times we see a facebook error while we try to acess our facebook account 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.
the problem can be fixed by deleting the cookies in your browser.
How to clear Cookies on Firefox??
Go to Tools > Options > Privacy then click the link remove all cookies.
How to clear Cookies on Internet Explore??
Go to Tools > Internet Options > General Tab then in the browsing history click the delete button check cookies and click the delete button.
It will solve your problem and next time you will get your original account without an error message.