You're in luck, I just encountered the same problem and got a fix for it.
The problem is this theme was released a year ago, before the folks at wordpress renamed prototype.js to pt.js. So, heres your fix:
Log into your ftp, go to wp-content/themes/orange-crush-5242006/ and download functions.php
Find where it calls for "prototype.js" and change it to "pt.js"
Upload the changed file to replace the original functions.php
Now, go into wp-content/themes/orange-crush-5242006/js and change the name of prototype.js to pt.js
Download this file, open it in a text editor, change all instances of "Prototype" to "Pt" and all instances of "prototype" to "pt". Save the file, and upload to replace the original.
I'm contacting the author of the theme with the fix, I'm guessing she'll release an update fairly expediently if you just want to hold tight for a few days instead of doing the dirty work.