The server encountered an internal error or misconfiguration and was unable to complete your request [closed]
Check your servers error log, typically /var/log/apache2/error.log.
You should look for the error in the file error_log in the log directory. Maybe there are differences between your local and server configuration (db user/password etc.etc.)
usually the log file is in
/var/log/apache2/error.log
or
/var/log/httpd/error.log