The game has been stuck on the twin circles loading screen for about 3 days now, and it seems to be the same for the other player in Japan that I am aware of.
Please fix.
This seems to be similar to:
https://forums.505go.com/discussion/92287/
Are you using iOS/Apple?
I would create a customer support ticket by sending an email to:
support@d3go.com
Please let us know the results of the ticket.