Hola estoy intentanto crear un sistema para cahear automaticamente todas las paginas dinamicas de mi sitio generadas con php

creo que el problema surge con mi .htaccess

Código :

php_value auto_prepend_file /home/names/public_html/incluir/cache.start.php
php_value auto_append_file /home/names/public_html/incluir/cache.end.php


y me sale el siguiente error

Código :

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

Please contact the server administrator, info @ hostmar.com 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/1.3.37 Server at 200.58.119.8 Port 80


agradeceria mucho su ayuda.!