So I installed R.E.D. WW2 mod earlier today. It comes up on the mod menu in-game, and I've set them as 'enabled'. However, when I click Custom Game and then WW2 Mod from the menu, I get this screen come up? I can't click anything, even "Return to Main Menu". I've looked through the troubleshooting guide on here to no avail. If somebody could help me out that would be great.