I am trying to do the latest update and it keeps shutting

I am trying to do the latest update and it keeps shutting down my site. I get a white screen and I can't access anything. I can't seem to just update directly and allow it to change the new files. I have to delete the previous files and then re-upload the new update. After it successfully opens the file and I click to network activate; then it goes to a white screen and I can't access my site. It doesn't come up on any other browsers either.