[Q] Knox app don't install topic

Hey guys, hope someone can help me.

I factory reseted my note 3 today, my Knox is 0x1 but my system custom is official... I can install all normally, like S health, s translator, kids mode etc, but when I try to install Knox app, the app opens and show an animation, after a message asking for wait a minute, and after that the app simply closes, and when I reopen, it do the same... Can it be because of the Knox 0x1? I believe that isn't 'cuz I remember that I can install it before...

Thanks.