Guitar Popcorn

I enter the app and I had this odd white box pop up. 2 minutes later, when it was STILL white, I clicked on the x. Then it had me on this screen that had 4 real books when suddenly, there was a flash, and the books disappeared leaving behind something that said I have ‘maked’ no books. It literally said that. I tried to get to where I make a book, and it said to sign up. I put my email and password in, but the same flash happened and it told me to enter my Facebook account and sign up through Facebook. I had already put my password in for signing up with email. Then, I pressed to go back and n