What book are you currently reading?

I have been struggling to restart an ebook I bought last february since march. I have an old tablet that I bought in 2012 and put the kindle app on it. A few days after I got the title, my kindle app had an automatic update that my old tablet wasn't able to work with, the android version was too old for the kindle update. About a month later I got a new phone, put on the kindle app and downloaded the title on it, but for some reason I am struggling to pick back up where I left off.