The website encountered an error while retrieving http://www.saka.bt/wp-admin/. It may be down for maintenance or configured incorrectly.
Here are some suggestions:
Reload this web page later.
HTTP Error 500 (Internal Server Error): An unexpected condition was encountered while the server was attempting to fulfill the request."
is the message when I try to login to admin. i started encountering this problem after updating my WordPress 3.0.1 - 3.1.2 to the latest.
Please advise what I have to do because i need to make changes to my site.