The FAQ does not seem to open in TOR browser
The FAQ works with Tor Browser's Security Level "Safer" or "Standard". With Tor settings on "Safest", you get this:
Only allows website features required for static sites and basic services. These changes affect images, media, and scripts.
Well, of course it won't work with that setting, because it turns off all JavaScript.
It's pretty hard to run an interactive TOR website without using JavaScript, if not impossible (there's just TorShop, but honestly, who develops with PHP anymore?)