The error message,
The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator, firstname.lastname@example.org and inform them of the time the error occurred, and anything you might have done that may have caused the error.
More information about this error may be available in the server error log.
Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.
That was the message I received a few days ago from my sugi.web.id. I don’t know why. Until I asked the web hosting that there have been a major damage on the server cpu in colocation center.
Actually 500 internal server error is an error message that quite common to appear when the server is having some trouble. It seems the administrator can manage the kind of error by creating 500.shtml for the error message.
Further we may learn to administrate the server in another post.