When I start the game, the launcher comes up, and I receive a script error pop-up saying

An error has occurred in the script on this page.

Line: 18
Char: 2
Error: 'Global' is undefined
Code: 0
URL: http://frontier.ffxiv.com/arr_win/in...?rd_lang=em-us

Then, the launcher is just completely black and I can do nothing with it. I'm lost here. I've played the game once before, for about ten minutes. Now, nothing.