1. I have a wp website : http://www.homelink.ch/wp where the contact forms work propely
2. I have duplicate this website on another one : http://www.haustauschferien.at and duplicate all files and db. Then contact forms does not work. When I click on "Send", it shows that it is working, but nothing happen
3. I have tried to delete Contact form by deleting the files in the ftp/plugins and to install it again, it still does not work.
Thank you for your help