$section variable no longer working?

I have been using the body class section, based on the beginning of the URL, pulled into the template by body class="?php print $classes;” (brackets removed here). The website is www.saferoutespartnership.org. I don't recall doing anything special to make it available, it was brought in with the standard body classes.

Suddenly it is gone, so much of the color-coding by section that is supposed to be at the site has vanished.

I tried adding it separately to the tpl, moving it down into a lower element but no joy.

Any ideas? Or alternate approach?

I'm good with css but not with writing hooks or writing PHP (just putting snippets in per instructions :)

thanks !!!!!