I've never post on these forums before but this is the last place I can think of to turn.
One of the sites I host got a trojan, so I notified my host (Powweb) and they removed it for me. Whatever they did somehow broke every other WordPress website on my server. They were all displaying syntax errors stemming from a file called admin-shortcodes.php, but when I replaced that file the site would come up again. The problem is that the sliders, gravity forms and certain elements of the navigation are broken. I think they're all jQuery? The host says it's a WordPress problem, the theme company (WooThemes) can't help because it's outside the realm of their support policy, and I'm at a loss to fix all these broken websites. Does anyone have any idea what the problem might be, or more importantly, how to fix it?
Here is the address of one of the websites: