Plutonium

I just bought bo2 on steam, I then added it to the plutonium launcher so I could play the DLC maps for zombies. I can play in other peoples servers, but I cannot play solo or customs. When I load a game by myself I get stuck in a infinite loading screen. I already tried verify/repair my files in steam. Does anyone know why?

Also, my screen looks like this before I start the game. (Only when I select a map to play)