Photo uploader not working

i keep getting an HTTP error.. i then switched to the browser uploader and got this message
“Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator 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.

Apache Server at miisskeciia.com Port 80″

and I don’t know whats wrong or how to fix it… plz help