tablet and mobile

Can’t get my site visble on tablets and mobile. I use the bold headline template which I love! It works on desktop but mobile I get only the homepage and menu. When I click an item in the menu I get an error and the page id. My host says it has got something to do with the domain name in the sourcecode. Line 28,30,31. I don’t know what to do,so who can help?

website: http://www.dare2try.eu