Can not Log in to clash royale

I can not log in to my account in clash royale. When I log in to my account, it says to update. When I click update, it says that country or region is wrong

You must have logged into a Chinese account before. According to Supercell, there is no way around this except to perform a factory reset. Please note that if you are going to perform a backup restore from the iCloud, then it might overwrite your settings — so the only way that we know that you won’t get into this loop is to perform a factory reset and then reinstall everything from scratch. If you restore from iCloud then the previous hidden settings will be loaded and you will get back to your loop.