Dear ladies and gentlemen we bought the program WebSiteX5 evo and created a new homepage.

https://nikon-hans-fotografie.com/

We have two problems, please help us to solve this.

I have created a guestbook, where visitors to the website should leave their comments.

Unfortunately, this does not work

https://nikon-hans-fotografie.com/gaestebuch.php

The second problem is the contact page

I can not send emails there

https://nikon-hans-fotografie.com/kontakt.html

You get this error:

This method is not allowed.

I ask you to help me here