That red screen above is what we constantly get too. It thinks we are in Japan instead of the USA. Have deleted and re-downloaded the app numerous times and can get no further than that screen. I tried google and it says you should be able to upload your passport photo and answer a questionnaire and then upload your vaccine information; but I don't see how. Further sites on google say you need this app to work on your phone or you need to rent a phone in Japan to show this app? Frustrated as we are boosted and have our visas and are ready to go. Maybe we can just show our information to the airline when we board, but don't want any hiccups on the way. We are tech savvy (at least my husband is) and can't figure out this app!