Welcome to the forum! Try these threads and hopefully you can get things figured out.
https://www.mobileread.com/forums/sho...d.php?t=116434
https://www.mobileread.com/forums/sho...d.php?t=100817
I just recently purchased a literati (and my siblings bought several, so I am actively "servicing" several). Several basic things I've found are;
1. If something is acting weird, try restarting the literati. Just hold the power button down till the screen goes blank (about 6 secs).
2. If 1. didn't help, try resetting the literati to factory settings. This can be done by going to the settings menu, selecting "advanced" and then "Reset Device Now". (This will erase everything on the reader except the 25 included books.)
3. Battery life will be much better if you leave Wifi off when you aren't using it and turning the screen light down if you don't need it very bright.