Classic Problem with my Nook

[tatygirl90]

Hey guys I was wondering if you could help me with this problem. This afternoon I was reading a book on my nook. So this evening I tried reading the same book, but a little notice popped up saying it couldn't open it. I thought there was something wrong with that particular book. But when I went to my B&N library, I couldn't read anything on there either. It showed the books, but it had the download screen on them. Why is it acting like this? I thought they maybe I was logged out or something, but I checked my settings and saw that I was still logged in. I would appreciate any help!

Edit: I had ejected it while it was still sending books to the device. Thank god, I thought I had really messed up.