I'm having the same problem on my new iphone se.  Went through the steps to delete the app and reload the app, didn't work.  Tried deleting the app rebooting the phone, then reinstalling the app, still same problem.  Called support and was told they do not support the app and did not have a number for anyone that does.  Worked fine on my old Iphone 8.  I loaded the app on another iphone 8, worked fine.  Is there anyone out there that can help?