Hi Michele,
What version of Windows are you using?
From the latest screen shot, it looks like the app that's failing is a custom Survey123 app. Are you able to run this app in AppStudio by double clicking?
If it works in AppStudio, I think the problem you're hitting is a bug with the Advanced Config tool. Can you let me know if the below workaround steps fixes the AppFramework Devices plugin error?
- Copy C:\Users\username\Applications\ArcGIS\AppStudio\bin\qml\ArcGIS\AppFramework\Devices to C:\Qt\Qt5.11.2\5.11.2\msvc2017_64\qml\ArcGIS\AppFramework. Overwrite the contents in the Devices folder that's already present in the Qt folder.
Thanks
Shobana