I downloaded the game launcher, then the game started to download a 18 gig update. When the update finished, it told me that I had to hit the repair button or restart the launcher. I restarted the launcher and it downloaded the 18 gigs again. When it finished, it told me to do the same thing again. It keeps trying to download the 18 gigs, then tells me to restart it, and do it all over again. What should I do?