When I am saving the world that I made, my computer turns off, blue screen appears with something written on it. Nothing was saved when I looked at it later.
If the computer restarts/turns off all by itself and you receive a blue screen, it means that the application is trying to perform a broken procedure. Windows will detect that procedure and it will restart the PC to prevent damage to registry and system files. This is known as BSOD. Try to update the application to its latest version using the patch packages available from the Members Area on EA support website.