Some Help here please

In this site i’m trying to load a html form. I get it with the main page but when I change to other mc and try to do it I get this message

HTTP 405 - Resource not allowed

this is the website . If you click in the main page on appointments, the html form will come without problems, but when you go to chiropractor and click on appointments, I get the message and it wont show the form.

If you have any Ideas please post here.

My AIM : Yean1980
MSN: [email protected]

Thank you.