Having issues with Contour app on Android tablet via wifi today, 8/28/2018, not working but was working fine last week

Using Samsung Galaxy Tab E Android version 7.1.1 in usual wifi mode.  Contour has worked fine for last couple years including all periodic Contour app updates.  No wifi or internet connection problems at all.  When I tried using the app today (last used app last week 8/24/2018). I kept getting error messages

Error

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