HI Eric,
Thanks for your prompt reply, Yes it work after edit the .htaccess file.
But when I install the vesion 1.1.1 again,
the website crashed again with below error message.
Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator at [email protected] to inform them of the time this error occurred, and the actions you performed just before this error.
More information about this error may be available in the server error log.
Additionally, a 500 Internal Server Error error was encountered while trying to use an ErrorDocument to handle the request.
Hope you can trouble shoot the problem, by the way version 1.1.1 is it the latest version?