Sorry, I'm on android and new to downloading from websites, so do i delete my game and the 3gb file then download the new updated version? If i do that wouldn't all my progress be lost?
If your current installed version is lower than 6.0, then unfortunately yes. This is due to a bug that we have fixed going forward.
If your installed version is 6.0 or above, then you should be able to just download the new version and install it on Android.