problem after a domain change

I have changed domain for my web site and in the previous one I was able to show a tour just using the URL where the tour files where archived. The tour directory was in the root directory of my published site.
After the domain change (and the hosting provider too) even if I have moved the tour directory in the root directory of the new published site, when I try to open the tour, it opens a new web page but the tour load fails and the message is /%$WPPANOPATH%/xml/wp-pano.xml – loading failed! (400)