Thank you for your reply.
I am a hardware engineer and have no idea about software.
So I feel grateful that you can ask the software.
I bought Raspberry Pie 3 to do openag.
I thought Raspberry Pi was the first to update the UI.
So I set it on the site you told me,
The problem still occurs.
I think there is a problem with how to set Raspberry Pi.
So I would like to ask you about the initial setting procedure of Raspbtty Pi.