The "ZeniMax Online" directory and all its contents are 777. This means that even an entirely unprivileged user can make arbitrary changes to code that you will then subsequently run with your own permissions, with potentially catastrophic effects.
I would recommend a quick:
sudo chown -R root:admin "/Applications/ZeniMax Online"
sudo chmod -R o-w "/Applications/ZeniMax Online"
And unfortunately, you will probably need to do this again after every patch, since the patcher is likely to set things back to broken.
(This assumes that you're running it as a user in the admin group. If not, good on you, and you can no doubt figure out more relevant ownership.)
Installing software as world-writable is some embarrassingly amateur-hour nonsense.