If it automatically goes in to "not whitelisted" press esc so you'll return to lobby. In lobby you have to select the purple "civ/civilian" button and then choose a civilian slot that is not currently being used.
Not exactly a geek myself, I dropped out of the tech game back in win 8.
But you could check this out if it is any help with the black screen and cursor.
Try do something they teach in IT- school. Try googling the error code, cant really see it from the image but that should give some direction whats up. 🙂