Front-end and Back-end Template Disappeared

[scionseo]

I was adding the first categories to my site, and when I added the third, the template disappeared entirely. I checked on different browsers, and the front-end template is gone as well. I have added other templates and none of them are displaying. I have looked into the problem, and I can not find any helpful information. Can anyone help me with this?
http://bit.ly/ruGU1b

[Mangek]

I get a warning trying to connect to that site.

[scionseo]

I assure you there is nothing dangerous about the site. The link is to a screen shot of what the backend looks like now.

[scionseo]

Nevermind, I reinstalled serendipity and it now works