Sign into the iTunes Store
Hello, a pop up of “sign in to the iTunes Store” keeps popping up on my MacBook. I have repeatedly tried to press cancel and nothing happens, it keeps coming back. I have also tried putting my Apple ID in which is definitely correct, however it doesn’t seem to make the pop up go away. This is a problem because I cannot update the software without this pop up being closed. Hope you can help, thanks
MacBook Air 13", macOS 10.14