Sign into itunes store pop up
It keeps asking me to sign into the itunes store and put in my password but when i do it goes away and then a second later asks again and when i click cancel it still doesn't go away. It's correct apple id and password because when i purposely mess up the password itll pop up in red saying i'm wrong but when i put in correct stuff it just pops up again asking for password. I can't update my macbook pro because you can't quit the itunes pop up, you can only hide it. Is there a fix to this bug? I've signed in and out of my icloud and app store.
MacBook Pro with Touch Bar