When I try to open the launcher I am getting a pop up script error

An error has occurred in the script on this page
Line: 1
Char: 1
Error: Invalid character
Code: 0
URL: https://launcher.finalfantasyxiv.com...f042.bundle.js
Do you want to continue
Yes No
Hitting yes or no just brings up the pop up again until you click it 21 times, then the window is just blank dark grey

Possibly related, before this started happening, I launched the game and got a Blue Screen failure.

Thanks