top menu links don't function

I just installed the hot hotel template, but top menu links don't function.
Every link send to a blank page with 'No input file specified. '
For example 'l'hotel' in the top menu: www.tracceericordi.it/hotelgmurailles
It's just a simple link to a single article.
It's the same just installing the template or using the Hotstart installation

They function, but you have pointed them to that locations. I presume you are new to joomla please read some basic intro tutorial.