Can not read a singel book after installing the latest update of digital edition keep getting the same message E_Adept_Internal my books are all paid for, no borrowd book the laptop is authorized and even after deinstalling eand installing an older versi

I keep getting the same error message ; E_Adept_Internal. My books are all paid for, no borrowd books  the laptop is authorized and even after deinstalling and installing an older version of digital edition I keep getting the same error message.