Fix corrupted WordPress site

While I was out of the country for a few months with no internet access, something has happened to my website. The site was built in WordPress using the Chameleon theme. When I open the site in any browser, all of the formatting and theme characteristics are gone. I have deleted and reinstalled the theme, changed themes and reviewed all of the pages in wordpress. Nothing seems out of the ordinary, but every page of my website is affected with this problem. I didn't modify the theme very much, so it should be fairly easy to look at the Chameleon demo site and understand how mine is supposed to look. Thanks for your help!