Thread:Project:Support desk/Javascript not working at all (2)

Basically no javascript is working on my wiki, and what works and doesn't work seem to change almost daily. At one point everything worked and after that point I didn't change anything. Then things broke one at a time. Sometimes even the patrol AJAX trick where it doesn't open a new window isn't working. I really have no idea what's going on or how to fix it. I've done all the usual things, tried clearing my cache, did a hard refresh, used different browsers, etc. Nothing! The only lead I have to go on is I've used FireBug and it's returned an Error: Unknown Dependency: JSON on all pages. I'm not sure what this means however.

Link to wiki common.js
 * Mediawiki: 1.23.5
 * PHP: 5.6.7-1~dotdeb.2 (fpm-fcgi)
 * MySQL 5.6.21-1~dotdeb.1

If there's any other info you need let me know and I'll get it