Error 505: Internal Server Error

[luc_007_7]

Buenas gente que tal, tengo el siguiente error cuando quiero entrar en mi web:

Código HTML:

Internal Server Error

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

Please contact the server administrator, [email protected] 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.

Apache/2.2.17 (Unix) mod_ssl/2.2.17 OpenSSL/0.9.8e-fips-rhel5 mod_auth_passthrough/2.1 mod_bwlimited/1.4 FrontPage/5.0.2.2635 Server at colonsocial.com Port 80

lo pueden verificar desde http://tinyurl.com/5smaxv9

me fije en el log de errores y me salta esto

Código:

[Wed Jul 13 01:06:31 2011] [error] [client 66.249.71.50] File does not exist: /home/xxx/public_html/500.shtml
[Wed Jul 13 01:06:31 2011] [error] [client 66.249.71.50] SoftException in Application.cpp:601: Directory "/home/xxx/public_html" is writeable by group

como lo puedo solucionar ? Desde ya muchas gracias !!

[luc_007_7]

bueno se be que el problema era los permisos de la carpeta public_html disculpen las molestias