problem adding box page

[photogifts]

hiya im adding couple pages done it few times before ok everything looks fine on website but when i try to go into the pages i get

 

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.

 

 

heres the link - http://www.photogiftshop.co.uk/catalog/faqs.php any help appreciated thanks